SPONSORED

Percentage Decrease Calculator

Percentage Decrease Calculator

50%

How to Calculate Percentage Decrease

Percentage decrease is found by dividing the decrease by the starting number, then multiplying that result by 100%.
\text{Percent Change} = \frac{\text{Decrease}}{\text{First Value}} \times 100\%
It should be noted that the percent decrease is measured FROM the first value – a decrease from 50 of 25 is a change of 50% (25 is the difference between the two numbers, and 25 is 50% of 50), while if that decease was looked at the other way around, it would be a difference percentage change (25 increase by 25 to 50 is an increase of 100%).

Example

Decrease from 50 by 25:
\frac{25}{50} \times 100\% = 0.5 \times 100\% = 50%
Decrease from 75 by 25:
\frac{25}{75} \times 100\% = 0.333 \times 100\% = 33.3%
Decrease from 0.0443 by 0.0001
\frac{0.0001}{0.0443} \times 100\% = 0.002257\times 100\% = 0.2257%

What is a percentage?

A percentage is a number expressed as a fraction of 100.
If a number is 100% (100 percent), then it is a “whole” – the same as one.
If a number is 50%, then it is a half – the same as 0.5 or 1/2.
If a number is 400%, then it is 4 times, the same as 4.

More Math Calculators