Profit & Loss: Formulas, Tricks & Examples for Percentage Calculations

Profit and Loss is one of the most formula-heavy and high-scoring topics in arithmetic. But many students find it confusing because the same article can produce different outcomes depending on cost, selling price, and percentage calculations.

If you understand these three ideas clearly:
✔ Cost Price (C.P.)
✔ Selling Price (S.P.)
✔ Profit or Loss Percentage

Then you can solve any Profit & Loss question effortlessly.

This guide covers all formulas, concepts, FAQs, and exam-style examples, making it a perfect one-stop solution for all competitive exams.

Quick Overview: Profit & Loss Formulas

Concept / Situation	Reference Considered (Equivalent to Distance)	Variable Used (Equivalent to Speed)	Formula (Meaning of Symbols in Row)
Profit / Gain	Difference between S.P. and C.P.	S.P. – C.P.	Profit = S.P. – C.P. (S.P. = Selling Price, C.P. = Cost Price)
Loss	Difference between C.P. and S.P.	C.P. – S.P.	Loss = C.P. – S.P.
Gain %	Profit relative to C.P.	(Profit/C.P.)×100	Gain% = (Profit/C.P.)×100 (Profit = S.P.–C.P.)
Loss %	Loss relative to C.P.	(Loss/C.P.)×100	Loss% = (Loss/C.P.)×100
Finding S.P. (Profit)	C.P. is base value	Gain% applied on C.P.	S.P. = (100+Gain%)/100 × C.P.
Finding S.P. (Loss)	C.P. is base value	Loss% deducted from C.P.	S.P. = (100–Loss%)/100 × C.P.
Finding C.P. (Profit)	S.P. known	Gain% used reverse	C.P. = (100×S.P.)/(100+Gain%)
Finding C.P. (Loss)	S.P. known	Loss% used reverse	C.P. = (100×S.P.)/(100–Loss%)
Equal Gain% & Loss%	Identical % on two items	x²/100 loss rule	Loss% = (x²)/100
False Weights	Difference between true & fake weight	Error/(True–Error)	Gain% = (Error/(True–Error))×100

Value Conversion Formulas (Foundation of Profit & Loss)

Before using advanced formulas, always identify whether the percentage applies to C.P. or S.P.. In Profit & Loss, every percentage is reckoned on C.P. Using the wrong base gives incorrect results.

1. Converting C.P. to S.P. (Profit Case)

When there is a gain, Selling Price becomes more than Cost Price.

Formula:

S.P. = C.P. × (100 + Gain%) / 100

Why this formula works

Profit is calculated on C.P.
If gain is 20%, the item is sold at 120% of its cost.

Example

C.P. = ₹500, Gain% = 20%
S.P. = 500×120/100 = ₹600

2. Converting C.P. to S.P. (Loss Case)

When there is a loss, Selling Price becomes less than Cost Price.

Formula:

S.P. = C.P. × (100 – Loss%) / 100

Why this formula works

Loss reduces value below the cost, so S.P. becomes a percentage of C.P.

Example

C.P. = ₹400, Loss% = 10%
S.P. = 400×90/100 = ₹360

Basic Profit–Loss Relations (Foundation Formulas)

All Profit & Loss questions are built from three essential relationships. These are similar to the Speed–Time–Distance base formulas in train problems.

1. Profit Formula

Profit = S.P. – C.P.

2. Loss Formula

Loss = C.P. – S.P.

3. Profit Percentage

Profit% = (Profit / C.P.) × 100

4. Loss Percentage

Loss% = (Loss / C.P.) × 100

These four equations appear in almost every question involving profit, discount, marked price, and reverse-calculation.

Finding Cost Price (Reverse Formulas)

These formulas are the Profit & Loss equivalent of converting m/s → km/hr or using relative speed backward.
When S.P. and % are known, we must reverse the formula to find C.P.

1. Finding C.P. When S.P. and Profit% Are Given

Formula:

C.P. = (100 × S.P.) / (100 + Gain%)

Why this formula works

If S.P. is 120% of C.P., then C.P. = S.P. divided by 1.20.

Example

S.P. = ₹240, Profit% = 20%
C.P. = (240×100)/120 = ₹200

2. Finding C.P. When S.P. and Loss% Are Given

Formula:

C.P. = (100 × S.P.) / (100 – Loss%)

Why this formula works

If S.P. is 80% of C.P., then C.P. = S.P. divided by 0.80.

Example

S.P. = ₹400, Loss% = 20%
C.P. = (400×100)/80 = ₹500

Special Profit & Loss Formulas (Advanced Cases)

These formulas appear in high-level exam questions (SSC CGL, SBI PO, CAT).

1. Equal Gain% and Loss% on Two Items (Always Produces Net Loss)

When one item is sold at x% gain and another at x% loss, the seller always incurs a loss.

Formula:

Net Loss% = (x² / 100)

Why this formula works

Profit applies on one C.P., loss applies on another. The base is different, so the effects don’t cancel.

Example

Gain = 10%, Loss = 10%
Loss% = 10²/100 = 1% Loss

2. False Weights Formula (Cheating Questions)

This is the Profit & Loss equivalent of relative speed in trains, one formula solves all such tricky questions.

When a trader pretends to sell at cost price but gives less quantity, he makes a profit.

Formula

Gain% = (Error / (True Weight – Error)) × 100

Where:

True Weight = actual required weight (e.g., 1 kg = 1000g)
Error = shortage given (difference)

Example

Seller gives 900g but charges for 1kg
Error = 100g
Gain% = 100/(1000–100) ×100 = 11.11%

3. Profit or Loss Based on Percentage Value Conversion

Sometimes an article is sold at "x% of C.P." or "y% of S.P."
Convert it into multipliers.

Examples

“S.P. = 135% of C.P.” → S.P. = 1.35×C.P.
“Sells at 75% of C.P.” → S.P. = 0.75×C.P.
“S.P. is 60% more than C.P.” → S.P. = 1.60×C.P.

These help in solving ratio and chain-rule based P&L questions.

Smart Tips and Practical Tricks for Solving Profit and Loss

Mastering Profit and Loss becomes simple when you understand how cost price, selling price, and percentage work together. Most students make mistakes not because formulas are difficult, but because they apply them without understanding the relationship between C.P., S.P., and profit/loss percent.
This section breaks down the most important concepts into clear, actionable tips so you can solve questions faster and more accurately.

1. Always Identify Whether the Question Is Based on C.P. or S.P.

Almost every mistake in Profit & Loss happens because students use the wrong base. All percentages are always calculated on C.P., not on S.P.

Example:

C.P. = ₹200, S.P. = ₹260
Profit = ₹60
Profit% = (60/200)×100 = 30%

(Not (60/260) which gives wrong answer)

2. Convert Profit% or Loss% Into Multipliers for Fast Calculation

Instead of long formulas, convert percentages into multipliers.

Profit:
S.P. = (1 + Profit%) × C.P.

Loss:
S.P. = (1 – Loss%) × C.P.

Example:

C.P. = 500, Profit% = 20%
Multiplier = 1.20
S.P. = 500 × 1.20 = ₹600

This one method reduces calculation time drastically.

3. Break Questions Into Profit/Loss + Percent + Difference

Most questions are combinations of:
✔ Difference between S.P. & C.P.
✔ Percentage gain/loss
✔ Reverse-finding of C.P. or S.P.

Once you identify which combination is used, the problem solves itself.

Example:

S.P. = 240
Profit% = 20%
C.P. = (100×240)/(120) = ₹200

4. Understand That Equal Gain% and Loss% Always Produce Overall Loss

This is one of the most repeated exam traps. When one item is sold at x% gain and another at x% loss, there is always a loss, never a break-even.

Formula:
Loss% = x² / 100

Example:

Gain = 10%, Loss = 10%
Loss% = 10²/100 = 1% Loss

5. Carefully Read Whether the Question Gives S.P. or C.P.

Numerous exam mistakes happen because students use forward formulas for reverse situations.

Forward formula:
S.P. = (100 ± %)/100 × C.P.

Reverse formula:
C.P. = 100×S.P. / (100 ± %)

Example:

S.P. = 540, Loss% = 10%
C.P. = 540×100/90 = ₹600

6. Never Ignore Units in Mixed Questions

Sometimes S.P. is given per unit and C.P. is for total units. Always equalize units before applying formulas.

Example:

C.P. for 5 kg = ₹200
S.P. per kg = ₹50
S.P. total = 50×5 = 250
Profit = ₹50 (25% profit)

7. False Weight Questions Need Only One Formula

All false-weight questions follow the same concept:
The trader gives less quantity but charges for full.

Formula:
Gain% = (Error / (True – Error)) × 100

Example:

Seller calls 900g as 1kg
Error = 100g
Gain% = 100/(1000–100) ×100 = 11.11%

FAQs About Profit and Loss

Q1. Why is Profit or Loss always calculated on C.P.?

Because C.P. (Cost Price) is the original investment on which all percentages must be based.

Example:

C.P. = 400, S.P. = 500
Profit = 100
Profit% = 100/400 ×100 = 25%

Q2. Why do equal gain% and loss% always result in a net loss?

Because the gain and loss percentages apply to different cost prices, not to the same value.

Formula:
Loss% = (x²)/100

Example:

Gain = 20%, Loss = 20%
Loss% = 400/100 = 4% loss

Q3. Why is multiplier method recommended for Profit and Loss?

Using multipliers (1 + p%) or (1 – p%) reduces steps and avoids formula confusion.

Example:

C.P. = 300, Profit% = 25%
S.P. = 1.25 × 300 = ₹375

Q4. Why do false-weight questions generate profit even at “cost price”?

Because a seller gives less quantity but charges as if full weight is given. This increases the effective S.P. automatically.

Example:

Gives 900g but charges for 1000g
Error = 100g
Gain% = 100/900 ×100 = 11.11%

Q5. Why is reverse calculation necessary for finding C.P. from S.P.?

Because the percentage given applies to C.P., so we must backtrack the base value.

Example:

S.P. = 240, Profit% = 20%
C.P. = (240×100)/120 = ₹200

Q6. Why do students often get profit% and loss% calculations wrong?

Because they mistakenly use S.P. instead of C.P. as the base for percentages.

Example:

C.P. = 150, S.P. = 180
Profit = 30
Profit% = 30/150 ×100 = 20%
(Not 30/180)

Q7. How can diagrams or tables help in Profit and Loss?

Using a simple CP→SP flow table helps to identify what is given and what must be found.

Example:

C.P. = 100 → Profit 20% → S.P. = 120

Q8. What is the simplest way to master Profit and Loss?

Recognize patterns:
✔ Profit% → Increase C.P.
✔ Loss% → Decrease C.P.
✔ C.P. unknown → Use reverse formula
✔ Equal gain-loss → always loss
✔ False weights → always profit

Mini Example:

C.P. = 600
Loss% = 15%
S.P. = 600 × 0.85 = ₹510

Q9. How does Profit & Loss help in competitive exams?

It strengthens percentage understanding and commercial arithmetic, used across SSC, Banking, Railways, and CAT.

Example:

If profit = ₹50 and Profit% = 10%
C.P. = 50×100/10 = ₹500

Q10. Why is practice important in Profit & Loss?

Because small mistakes in percentages or reverse formulas lead to big errors. Regular practice builds automatic formula selection.

Mini Example:

Loss = 30, Loss% = 10%
C.P. = 30×100/10 = ₹300

Aptitude

Profit & Loss: Formulas, Tricks & Examples for Percentage Calculations

If you understand these three ideas clearly:
✔ Cost Price (C.P.)
✔ Selling Price (S.P.)
✔ Profit or Loss Percentage

Then you can solve any Profit & Loss question effortlessly.

This guide covers all formulas, concepts, FAQs, and exam-style examples, making it a perfect one-stop solution for all competitive exams.

Quick Overview: Profit & Loss Formulas

Concept / Situation	Reference Considered (Equivalent to Distance)	Variable Used (Equivalent to Speed)	Formula (Meaning of Symbols in Row)
Profit / Gain	Difference between S.P. and C.P.	S.P. – C.P.	Profit = S.P. – C.P. (S.P. = Selling Price, C.P. = Cost Price)
Loss	Difference between C.P. and S.P.	C.P. – S.P.	Loss = C.P. – S.P.
Gain %	Profit relative to C.P.	(Profit/C.P.)×100	Gain% = (Profit/C.P.)×100 (Profit = S.P.–C.P.)
Loss %	Loss relative to C.P.	(Loss/C.P.)×100	Loss% = (Loss/C.P.)×100
Finding S.P. (Profit)	C.P. is base value	Gain% applied on C.P.	S.P. = (100+Gain%)/100 × C.P.
Finding S.P. (Loss)	C.P. is base value	Loss% deducted from C.P.	S.P. = (100–Loss%)/100 × C.P.
Finding C.P. (Profit)	S.P. known	Gain% used reverse	C.P. = (100×S.P.)/(100+Gain%)
Finding C.P. (Loss)	S.P. known	Loss% used reverse	C.P. = (100×S.P.)/(100–Loss%)
Equal Gain% & Loss%	Identical % on two items	x²/100 loss rule	Loss% = (x²)/100
False Weights	Difference between true & fake weight	Error/(True–Error)	Gain% = (Error/(True–Error))×100

Value Conversion Formulas (Foundation of Profit & Loss)

1. Converting C.P. to S.P. (Profit Case)

When there is a gain, Selling Price becomes more than Cost Price.

Formula:

S.P. = C.P. × (100 + Gain%) / 100

Why this formula works

Profit is calculated on C.P.
If gain is 20%, the item is sold at 120% of its cost.

Example

C.P. = ₹500, Gain% = 20%
S.P. = 500×120/100 = ₹600

2. Converting C.P. to S.P. (Loss Case)

When there is a loss, Selling Price becomes less than Cost Price.

Formula:

S.P. = C.P. × (100 – Loss%) / 100

Why this formula works

Loss reduces value below the cost, so S.P. becomes a percentage of C.P.

Example

C.P. = ₹400, Loss% = 10%
S.P. = 400×90/100 = ₹360

Basic Profit–Loss Relations (Foundation Formulas)

All Profit & Loss questions are built from three essential relationships. These are similar to the Speed–Time–Distance base formulas in train problems.

1. Profit Formula

Profit = S.P. – C.P.

2. Loss Formula

Loss = C.P. – S.P.

3. Profit Percentage

Profit% = (Profit / C.P.) × 100

4. Loss Percentage

Loss% = (Loss / C.P.) × 100

These four equations appear in almost every question involving profit, discount, marked price, and reverse-calculation.

Finding Cost Price (Reverse Formulas)

These formulas are the Profit & Loss equivalent of converting m/s → km/hr or using relative speed backward.
When S.P. and % are known, we must reverse the formula to find C.P.

1. Finding C.P. When S.P. and Profit% Are Given

Formula:

C.P. = (100 × S.P.) / (100 + Gain%)

Why this formula works

If S.P. is 120% of C.P., then C.P. = S.P. divided by 1.20.

Example

S.P. = ₹240, Profit% = 20%
C.P. = (240×100)/120 = ₹200

2. Finding C.P. When S.P. and Loss% Are Given

Formula:

C.P. = (100 × S.P.) / (100 – Loss%)

Why this formula works

If S.P. is 80% of C.P., then C.P. = S.P. divided by 0.80.

Example

S.P. = ₹400, Loss% = 20%
C.P. = (400×100)/80 = ₹500

Special Profit & Loss Formulas (Advanced Cases)

These formulas appear in high-level exam questions (SSC CGL, SBI PO, CAT).

1. Equal Gain% and Loss% on Two Items (Always Produces Net Loss)

When one item is sold at x% gain and another at x% loss, the seller always incurs a loss.

Formula:

Net Loss% = (x² / 100)

Why this formula works

Profit applies on one C.P., loss applies on another. The base is different, so the effects don’t cancel.

Example

Gain = 10%, Loss = 10%
Loss% = 10²/100 = 1% Loss

2. False Weights Formula (Cheating Questions)

This is the Profit & Loss equivalent of relative speed in trains, one formula solves all such tricky questions.

When a trader pretends to sell at cost price but gives less quantity, he makes a profit.

Formula

Gain% = (Error / (True Weight – Error)) × 100

Where:

True Weight = actual required weight (e.g., 1 kg = 1000g)
Error = shortage given (difference)

Example

Seller gives 900g but charges for 1kg
Error = 100g
Gain% = 100/(1000–100) ×100 = 11.11%

3. Profit or Loss Based on Percentage Value Conversion

Sometimes an article is sold at "x% of C.P." or "y% of S.P."
Convert it into multipliers.

Examples

“S.P. = 135% of C.P.” → S.P. = 1.35×C.P.
“Sells at 75% of C.P.” → S.P. = 0.75×C.P.
“S.P. is 60% more than C.P.” → S.P. = 1.60×C.P.

These help in solving ratio and chain-rule based P&L questions.

Smart Tips and Practical Tricks for Solving Profit and Loss

1. Always Identify Whether the Question Is Based on C.P. or S.P.

Almost every mistake in Profit & Loss happens because students use the wrong base. All percentages are always calculated on C.P., not on S.P.

Example:

C.P. = ₹200, S.P. = ₹260
Profit = ₹60
Profit% = (60/200)×100 = 30%

(Not (60/260) which gives wrong answer)

2. Convert Profit% or Loss% Into Multipliers for Fast Calculation

Instead of long formulas, convert percentages into multipliers.

Profit:
S.P. = (1 + Profit%) × C.P.

Loss:
S.P. = (1 – Loss%) × C.P.

Example:

C.P. = 500, Profit% = 20%
Multiplier = 1.20
S.P. = 500 × 1.20 = ₹600

This one method reduces calculation time drastically.

3. Break Questions Into Profit/Loss + Percent + Difference

Most questions are combinations of:
✔ Difference between S.P. & C.P.
✔ Percentage gain/loss
✔ Reverse-finding of C.P. or S.P.

Once you identify which combination is used, the problem solves itself.

Example:

S.P. = 240
Profit% = 20%
C.P. = (100×240)/(120) = ₹200

4. Understand That Equal Gain% and Loss% Always Produce Overall Loss

This is one of the most repeated exam traps. When one item is sold at x% gain and another at x% loss, there is always a loss, never a break-even.

Formula:
Loss% = x² / 100

Example:

Gain = 10%, Loss = 10%
Loss% = 10²/100 = 1% Loss

5. Carefully Read Whether the Question Gives S.P. or C.P.

Numerous exam mistakes happen because students use forward formulas for reverse situations.

Forward formula:
S.P. = (100 ± %)/100 × C.P.

Reverse formula:
C.P. = 100×S.P. / (100 ± %)

Example:

S.P. = 540, Loss% = 10%
C.P. = 540×100/90 = ₹600

6. Never Ignore Units in Mixed Questions

Sometimes S.P. is given per unit and C.P. is for total units. Always equalize units before applying formulas.

Example:

C.P. for 5 kg = ₹200
S.P. per kg = ₹50
S.P. total = 50×5 = 250
Profit = ₹50 (25% profit)

7. False Weight Questions Need Only One Formula

All false-weight questions follow the same concept:
The trader gives less quantity but charges for full.

Formula:
Gain% = (Error / (True – Error)) × 100

Example:

Seller calls 900g as 1kg
Error = 100g
Gain% = 100/(1000–100) ×100 = 11.11%

FAQs About Profit and Loss

Q1. Why is Profit or Loss always calculated on C.P.?

Because C.P. (Cost Price) is the original investment on which all percentages must be based.

Example:

C.P. = 400, S.P. = 500
Profit = 100
Profit% = 100/400 ×100 = 25%

Q2. Why do equal gain% and loss% always result in a net loss?

Because the gain and loss percentages apply to different cost prices, not to the same value.

Formula:
Loss% = (x²)/100

Example:

Gain = 20%, Loss = 20%
Loss% = 400/100 = 4% loss

Q3. Why is multiplier method recommended for Profit and Loss?

Using multipliers (1 + p%) or (1 – p%) reduces steps and avoids formula confusion.

Example:

C.P. = 300, Profit% = 25%
S.P. = 1.25 × 300 = ₹375

Q4. Why do false-weight questions generate profit even at “cost price”?

Because a seller gives less quantity but charges as if full weight is given. This increases the effective S.P. automatically.

Example:

Gives 900g but charges for 1000g
Error = 100g
Gain% = 100/900 ×100 = 11.11%

Q5. Why is reverse calculation necessary for finding C.P. from S.P.?

Because the percentage given applies to C.P., so we must backtrack the base value.

Example:

S.P. = 240, Profit% = 20%
C.P. = (240×100)/120 = ₹200

Q6. Why do students often get profit% and loss% calculations wrong?

Because they mistakenly use S.P. instead of C.P. as the base for percentages.

Example:

C.P. = 150, S.P. = 180
Profit = 30
Profit% = 30/150 ×100 = 20%
(Not 30/180)

Q7. How can diagrams or tables help in Profit and Loss?

Using a simple CP→SP flow table helps to identify what is given and what must be found.

Example:

C.P. = 100 → Profit 20% → S.P. = 120

Q8. What is the simplest way to master Profit and Loss?

Recognize patterns:
✔ Profit% → Increase C.P.
✔ Loss% → Decrease C.P.
✔ C.P. unknown → Use reverse formula
✔ Equal gain-loss → always loss
✔ False weights → always profit

Mini Example:

C.P. = 600
Loss% = 15%
S.P. = 600 × 0.85 = ₹510

Q9. How does Profit & Loss help in competitive exams?

It strengthens percentage understanding and commercial arithmetic, used across SSC, Banking, Railways, and CAT.

Example:

If profit = ₹50 and Profit% = 10%
C.P. = 50×100/10 = ₹500

Q10. Why is practice important in Profit & Loss?

Because small mistakes in percentages or reverse formulas lead to big errors. Regular practice builds automatic formula selection.

Mini Example:

Loss = 30, Loss% = 10%
C.P. = 30×100/10 = ₹300

Aptitude

Table of contents

Profit & Loss: Formulas, Tricks & Examples for Percentage Calculations

Quick Overview: Profit & Loss Formulas

Value Conversion Formulas (Foundation of Profit & Loss)

1. Converting C.P. to S.P. (Profit Case)

2. Converting C.P. to S.P. (Loss Case)

Basic Profit–Loss Relations (Foundation Formulas)

1. Profit Formula

2. Loss Formula

3. Profit Percentage

4. Loss Percentage

Finding Cost Price (Reverse Formulas)

1. Finding C.P. When S.P. and Profit% Are Given

2. Finding C.P. When S.P. and Loss% Are Given

Special Profit & Loss Formulas (Advanced Cases)

1. Equal Gain% and Loss% on Two Items (Always Produces Net Loss)

2. False Weights Formula (Cheating Questions)

3. Profit or Loss Based on Percentage Value Conversion

Smart Tips and Practical Tricks for Solving Profit and Loss

1. Always Identify Whether the Question Is Based on C.P. or S.P.

2. Convert Profit% or Loss% Into Multipliers for Fast Calculation

3. Break Questions Into Profit/Loss + Percent + Difference

4. Understand That Equal Gain% and Loss% Always Produce Overall Loss

5. Carefully Read Whether the Question Gives S.P. or C.P.

6. Never Ignore Units in Mixed Questions

7. False Weight Questions Need Only One Formula

FAQs About Profit and Loss

Q1. Why is Profit or Loss always calculated on C.P.?

Q2. Why do equal gain% and loss% always result in a net loss?

Q3. Why is multiplier method recommended for Profit and Loss?

Q4. Why do false-weight questions generate profit even at “cost price”?

Q5. Why is reverse calculation necessary for finding C.P. from S.P.?

Q6. Why do students often get profit% and loss% calculations wrong?

Q7. How can diagrams or tables help in Profit and Loss?

Q8. What is the simplest way to master Profit and Loss?

Q9. How does Profit & Loss help in competitive exams?

Q10. Why is practice important in Profit & Loss?

Related Articles

Table of contents

Profit & Loss: Formulas, Tricks & Examples for Percentage Calculations

Quick Overview: Profit & Loss Formulas

Value Conversion Formulas (Foundation of Profit & Loss)

1. Converting C.P. to S.P. (Profit Case)

2. Converting C.P. to S.P. (Loss Case)

Basic Profit–Loss Relations (Foundation Formulas)

1. Profit Formula

2. Loss Formula

3. Profit Percentage

4. Loss Percentage

Finding Cost Price (Reverse Formulas)

1. Finding C.P. When S.P. and Profit% Are Given

2. Finding C.P. When S.P. and Loss% Are Given

Special Profit & Loss Formulas (Advanced Cases)

1. Equal Gain% and Loss% on Two Items (Always Produces Net Loss)

2. False Weights Formula (Cheating Questions)

3. Profit or Loss Based on Percentage Value Conversion

Smart Tips and Practical Tricks for Solving Profit and Loss

1. Always Identify Whether the Question Is Based on C.P. or S.P.

2. Convert Profit% or Loss% Into Multipliers for Fast Calculation

3. Break Questions Into Profit/Loss + Percent + Difference

4. Understand That Equal Gain% and Loss% Always Produce Overall Loss

5. Carefully Read Whether the Question Gives S.P. or C.P.

6. Never Ignore Units in Mixed Questions

7. False Weight Questions Need Only One Formula

FAQs About Profit and Loss

Q1. Why is Profit or Loss always calculated on C.P.?

Q2. Why do equal gain% and loss% always result in a net loss?

Q3. Why is multiplier method recommended for Profit and Loss?

Q4. Why do false-weight questions generate profit even at “cost price”?

Q5. Why is reverse calculation necessary for finding C.P. from S.P.?

Q6. Why do students often get profit% and loss% calculations wrong?

Q7. How can diagrams or tables help in Profit and Loss?

Q8. What is the simplest way to master Profit and Loss?

Q9. How does Profit & Loss help in competitive exams?

Q10. Why is practice important in Profit & Loss?

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