Profit and Loss


The profit and loss statement is a financial statement that is related to trade and business. Whenever a purchased article is sold, then either profit is earned or loss is incurred.

Cost Price ( CP ):- When an article is purchased at any price, then that price is called cost price of the article.

Selling price ( SP ):- When an article is sold at any price, then that price is called selling price of the article.

Overhead Charges:- Overhead charges are the extra expenditures on purchased articles. Examples of overhead charges are rent, salary of employees, repairing cost etc.

Basic Formulae :-

When an article sold at a price more than its cost price, then profit is earned. ( SP > CP )

Profit = Selling Price - Cost price
Profit = SP - CP

Example- A man buys an article for ₹ 500 and sells it for ₹ 1900. Find profit or loss.
Solution:- given, CP = 500
SP = 1900
Here, SP > CP
∴ Profit is earned
Profit = SP - CP
= 1900 - 500
= 1400 ₹

2. When an article sold at a price lower than its cost price, then loss is incurred. ( CP > SP )

Loss = Cost price - Selling price
Loss = CP - SP

Example- A person buys a cycle for ₹ 560 and sells it for ₹ 340. Find profit or loss.
Solution:- given, CP = 560
SP = 340
Here, CP > SP
Then loss is incurred
Loss = CP - SP
= 560 - 340
= ₹ 220

2.Profit % =
Profit
× 100
Cost Price

Or

Profit % = Profit × 100
CP

Example- A person buys a toy for ₹60 and sells it for ₹ 75. What will be his profit percent?
Solution:- given, CP = ₹60
SP = ₹ 75
Profit = SP - CP
= 75 - 60
= ₹ 15

Profit % =
Profit
× 100
Cost Price

Profit % =
15
× 100 = 25 %
60

4. Loss % =
Loss
× 100
Cost Price

Or

Loss % = Loss × 100
CP

Example- A person buys a book for ₹ 200 and sell it for ₹ 150. What will be his loss percent?
Solution:- Given, CP = ₹ 200
SP = ₹ 150
here, CP > SP
loss = CP - SP
= 200 - 150
= ₹ 50

Loss % =
Loss
× 100
Cost Price

Loss % =
50
× 100 = 25 %
200

5. Selling Price =
( 100 + Profit%)
× Cost Price
100

Example- Find the SP when CP is ₹ 120 and gain is 20%.
Solution:- Given, CP = ₹ 120
gain = 20%

Selling Price =
( 100 + Profit%)
× Cost Price
100

Selling Price =
( 100 + 20 )
× 120
100

Selling Price =
120
× 120 = ₹ 144
100

6. Selling Price =
( 100 - Loss%)
× Cost Price
100

Example- Find the selling price of an article when cost price is ₹ 75 and loss is 20 %.
Solution :- given, CP = ₹ 75
loss = 20 %

Selling Price =
( 100 - Loss%)
× Cost Price
100

Selling Price =
( 100 - 20 )
× 75
100

Selling Price =
80
× 75 = 20 x 3 = ₹ 60
100

7. Cost Price =
100
× Selling Price
( 100 + Profit%)

Example- Find the cost price when selling price is ₹ 200 and gain is 20 %.
Solution:- given, SP = ₹ 200
gain = 20 %

Cost Price =
100
× Selling Price
( 100 + Profit%)

Cost Price =
100
× 200
( 100 + 20 )

Cost Price =
100
× 200 =
5
× 200
120 6

Cost Price =
500
= ₹ 166.66
3

8. Cost Price =
100
× Selling Price
( 100 - Loss%)

Example- Find the CP when SP is ₹ 600 and loss is 25 %.
Solution: - given, SP = ₹ 600
Loss = 25 %

Cost Price =
100
× Selling Price
( 100 - Loss%)

Cost Price =
100
× 600
( 100 - 25 )

Cost Price =
100
× 600 =
4
× 600 = 4 × 200 = ₹ 800
75 3

Example- By selling a watch for ₹ 1640, a man loses 20 % . At what price should he sell it to gain 10%.
Solution:- given, SP = ₹ 1640
loss = 20 %
gain = 10%
new SP = ?

Cost Price =
100
× Selling Price
( 100 - Loss%)

Cost Price =
100
× 1640
( 100 - 20 )

Cost Price =
100
× 1640 =
5
× 1640 = 5 × 410 = ₹ 2050
80 4

Now , SP =
( 100 + Profit% )
× CP =
( 100 + 10 )
× 2050
100 100

New SP =
110
× 2050 = 11 × 205 = ₹ 2255
100

Some Useful Shortcut Method :-

Trick- When a person sells two similar articles, one at a profit of y% and another at a loss of y% then he always makes loss on that transaction which is given by

Loss % =
y2
%
100

Example- A man sold two radios for ₹ 500 each. On one he gains 24% and on the other he loses 24%. Find his gain or loss percent in the whole transaction.
Solution:- Here y = 24%

Loss % =
y2
%
100

Loss % =
242
%
100

Loss % =
576
= 5.76%
100

Trick- If the cost price of 'x' article is equal to the selling price of 'y' article, then profit percentage

Profit % =
( x - y )
× 100 %
y

Example- If the cost price of 25 articles is equal to the selling price of 20 articles, then find the profit percent.
Solution:- Let x = 25
y = 20

Profit % =
( x - y )
× 100 %
y

Loss % =
25 - 20
× 100 %
20

Profit % =
5
× 100 = 5 x 5 = 25%
20

Trick- By selling an article a shopkeeper earns x% on selling price, then actual profit percent

Actual Profit % =
x
× 100 %
( 100 - x )

Example– By selling an article, a shopkeeper earns 20% on selling price. Find his actual profit percent.
Solution:- Here, x = 20 %

Actual Profit % =
x
× 100 %
( 100 - x )

Actual Profit % =
20
× 100 %
100 – 20

Actual Profit % =
20
× 100 = 25%
80

Trick– By selling an article a shopkeeper loss x % on selling price, then actual loss percent

Actual Loss % =
x
× 100 %
( 100 + x )

Ex– By selling an article a shopkeeper loss 20 % on selling price. Find actual loss percent.
Solution:- Here, x = 20 %

Actual Loss % =
x
× 100 %
( 100 + x )

Actual Loss % =
20
× 100 %
100 + 20

Actual Loss % =
20
× 100 =
1
× 100 = 16.66%
120 6

Trick- If a dishonest trader professes to sell his items at cost price but uses false weight, then

Profit % =
Error
× 100 %
( True value - Error )

Ex– A dishonest Shopkeeper professes to sell his goods at cost price but he uses a weight of 900 gm for 1 kg weight. Find his gain per cent.
Solution:- Here, True value = 1000 gm
Error = 100 gm

Profit % =
Error
× 100 %
( True value - Error )

Profit % =
100
× 100 %
1000 – 100

Profit % =
100
× 100 =
100
= 11.11%
900 9

Trick- Selling price of two articles is ₹ S each. One of the article is sold at x % profit and another is sold at x % loss, then

Actual Profit or Loss = ₹
2Sx2
( 1002 - x2 )

Ex– Selling price of two articles is ₹ 192 each. One is sold at 20 % profit and another is sold at 20 % loss. Find actual profit or loss in ₹
Solution:- Here, S = 192 and x = 20%

Actual Profit or Loss = ₹
2Sx2
( 1002 - x2 )

=
2 × 192 × 202
=
2 × 192 × 400
( 1002 – 202 ) ( 10000 – 400 )

Actual Profit or Loss =
2 × 192 × 400
= ₹ 16
9600

Trick- Cost price of some articles is given as ₹ 1 each. Now a shopkeeper earns x % profit, then number of articles to be sold for ₹ 1 each to ensure x % profit

Number of articles sold =
100
× Number of articles buy
100 + x%

Ex– Cost price of 30 articles is ₹ 1. A shopkeeper earns 20 % profit. Find number of articles to be sold for ₹ 1
Solution:- Here, number of articles buy = 30 and x = 20

Number of articles sold =
100
× Number of articles buy
100 + x%

Number of articles sold = 30 ×
100
= 30 ×
100
= 25
( 100 + 20 ) 120

Trick- By selling some articles for ₹ 1. A shopkeeper earns x% profit, then how many articles to be sold for ₹ 1 to earn y% profit.

Number of articles sold
=
100 + x
×
100
× Number of articles buy
100 100 + y

Ex- By selling 30 articles for ₹ 1 a shopkeeper earns 20%. Find number of articles to be sold for ₹ 1 to earn 50% profit.
Solution:- Here, No. of sold articles = 30
x = 20% and y = 50 %

Number of articles sold =
100 + x
×
100
× Number of articles buy
100 100 + y

Number of articles sold =
100 + 20
×
100
× 30
100 100 + 50

Number of articles sold = 30 ×
120
×
100
100 150

Number of articles sold = 30 ×
6
×
2
= 24
5 3