Often when we go for shopping we would like to go for discounts. Many a times we come across the discount tags before the shop as 20 % off , 30 % off etc. These off tags gives us the idea about how much Percentage off is there for the original price of an item. Instead of spending 100 % amount on an item there will be some deductions or off in percentage on each original price.
Percentage Off
Percentage off  can be calculated using formula
Percentage Off Formula
Percentage off calculator is a online tool to calculate the percentage off or the reduction in price for a particular selling item. It is a online tool to calculate the discount price in percentage for a given sale price and original price for an item.
Lets see how to calculate the percentage off in a given problem
Step 1 : Read the given problem and observe the sale price and original price.

Step 2 :
The percentage off is given by
Percentage off % = (1 - $\frac{Sale Price}{Original Price}$) $\times$ 100 %

Substitute the values and get the answer.

Lets go through some solved problems on calculations of Percentage off.

Solved Examples

Question 1: Jim buys a shirt for 400 Rs in a sale. If its original price is Rs 600, Calculate its discount rate.
Solution:
 
Given: Original Price of the shirt = Rs 600
          Sale Price of the shirt = Rs 400

The Percentage off is given by
Percentage off = (1 - $\frac{Sale Price}{Original Price}$) $\times$ 100 %

                      = (1 - $\frac{400}{600}$) $\times$ 100 %

                      = (1 - 0.6667) $\times$ 100 %
                      = 0.333 $\times$ 100 %
                      = 33.33%

$\therefore$ 33.33% off is there on the shirt.

 

Question 2: A Whole sale was put in a market on groceries. Mary buys Milk, jam and sugar for Rs 100. If their marked price as a whole is Rs 125, Calculate the Percentage off?
Solution:
 
Given: Original Price for the item = Rs 125
          Sale Price for the item = Rs 100
The Percentage off is given by
Percentage off = (1 - $\frac{Sale Price}{Original Price}$) $\times$ 100 %

                      = (1 - $\frac{100}{125}$) $\times$ 100 %

                      = (1 - 0.8) $\times$ 100 %
                      = 0.2 $\times$ 100 %
                      = 20 %

$\therefore$ 20 % off is there on the groceries.