## Reverse Percentage Calculator 1

Use This If: You want to find the Original number, you know Final number and Percentage Increase or Decrease.
 Final Number: Percentage: Percentage Change: Increase Decrease Original Number:
We have,
Final Number: ...
Percentage: ...%

Formula to calculate Original Number (for percentage increase),

 Final Number Original Number = Percentage 1 + 100

Substituting values in formula,

 Final Number Original Number = Percentage 1 + 100

 Final Number Original Number = 1 + (Percentage/100)

 Final Number Original Number = 1 + (Percentage/100)

A ...% increase of ... is ....

## Reverse Percentage Calculator 2

Use This If: You want to find the Original number, you know Final number and Percentage.
 Final Number : Percentage : Original Number :
Reverse Percentage Calculator 2
Ex: 10 is 10 % of what?

 Final Number × 100 Original Number = Percent

Substituting values in formula,

 Final Number × 100 Original Number = Percent

 Final Number × 100 Original Number = Percent

10 is 10 % of 100.

## How To Calculate Reverse Percentage?

To calculate the reverse percentage (original value) we need to know the final number and percentage. There are two types by which you can calculate the reverse percentage.  First type when you know the final number, percentage, and percentage changes (increase/decrease). We classified them as reverse percentage type 1 and reverse percentage type 2. Let's look at them one by one.

### A.Reverse Percentage Calculator 1

Before calculating the reverse percentage (original price), let's look at the percentage increase/decrease.

 Final Number Original Number = Percentage 1 (+/-) 100

+ve for percentage increase and -ve percentage decrease.

Let's take some examples of a reverse percentage 1.

Example a. Price of bike reduced by 10% to \$10,000. What was the original price of the bike?

Solution:
The final number: \$10,000
Percentage: 10%
Percentage change: Decrease
Original Number:?

We know the formula to calculate the reverse percentage (original value),

 Final Number Original Number = Percentage 1 - 100

Substituting values in the formula,
 10000 Original Number = 10 1 - 100

 10000 Original Number = 1 - 0.1

 10000 Original Number = 0.9000

Original Number = 11111.1111

Original price of the bike = \$ 11111.11

Use reverse percentage calculator 1 to solve such type of problem.

### B.Reverse Percentage Calculator 2

Let's get to know about the basic formula to calculate a percentage.

 final Number × 100 Percentage = Original Number

Now, we reverse it to understand the reverse percentage.

 Final Number × 100 Percentage = Original Number

Let's take some examples of a reverse percentage.

Example a. 101 is 5% of what?

Solution:
The final number: 101
Percentage: 5%
Original Number:?

We know the formula to calculate the reverse percentage (original value),

 Final Number × 100 Percentage = Original Number

 101 × 100 Percentage = 5

 10100 Percentage = 5

Original number = 2020

101 is 5 % of 2020.

Example b. Two months ago Mike brought an iPhone. He forgot the exact amount of an iPhone but he knows he got 5% off and saved \$50 on that deal. Now Mike wants to know the original amount of that iPhone.

Solution:
The final number: \$50
Percentage: 5%
Original Number:?

We know the formula to calculate the reverse percentage (original value),

 Final Number × 100 Percentage = Original Number

 50 × 100 Percentage = 5

 5000 Percentage = 5

Original number = 1000

50 is 5 % of 1000.

Use reverse percentage calculator 2 to solve such type of problem.

These are the free reverse percentage calculator to calculate reverse percentage online. With the help of these calculators, you can calculate the reverse percentage off, reverse percentage problems, reverse calculate percentage discount, and reverse percentage increase and decrease.

FAQ

How to calculate reverse percentage?
a. Take the final number.
b. Take the percentage.
c. Multiply the final number by 100.
d. Then, divide it by Percentage.
e. Here, you get your original number.

How to calculate reverse percentage decrease?
a. Take the final number.
b. Take the percentage.
c. Divide percentage by 100.
d.Then, subtract percentage from 1 (1- percentage).
e. Divide the final number by it.
f.  Here, you get your original number.

The formula to calculate reverse percentage decrease?
Original Number = Final Number / ( 1 - (Percentage/100))

How to calculate reverse percentage increase?
a. Take the final number.
b. Take the percentage.
c. Divide percentage by 100.
d.Then, add 1 to a percentage (1 + percentage).
e. Divide the final number by it.
f.  Here, you get your original number.

The formula to calculate reverse percentage increase?
Original Number = Final Number / ( 1 + (Percentage/100))

Tip : Press Tab to switch cell and press Enter to calculate.
Tip : Press Enter to calculate.