# Percentage Decrease Calculator

The percentage decrease calculator determine the change of one quantity to a lesser amount in terms of percent decrease. It is important to understand how to calculate percent decrease manually using a percent decrease formula. The content below will explain these concepts in further detail.

## How to calculate percent decrease

- Suppose original value is
`750`

and new value is`590`

. Input in the formula. - Perform the operation
`750 - 590 = 160`

. - Divide
`160`

by`750`

to get`.213`

. - Multiply
`.213`

by`100`

to get`21.3`

percent. - Check your answer using the percentage decrease calculator.

We need an original quantity and a new quantity. The new quantity must be less than the original or the change will be an increase. The difference between the quantities is computed, which is divided by the original quantity. The result is multiplied by 100. This can also be accomplished using the percentage difference calculator and the percentage change calculator.

## Percent decrease formula

`Percent decrease = [(original_value - new_value)/original_value * 100]`

## Other related concepts

The basic a concept of percentage is essentially the portion of one value in terms of another as part of 100. For example, 3 compared to 50 is 6 compared to 100, or 6 percent. The easy way on how to find percentage is to take the partial quantity divided by the whole quantity times 100.

If you want to know how to calculate percent increase you can use the percent increase calculator or work it out by hand.