Scenario 1
Price reduction
$200 → $150 = 25% decrease.
Trusted by freelancers and business owners
Percentage Decrease Calculator
Calculate any percentage decrease or price drop instantly.
Adjust your inputs
Results update instantly as you type or drag.
-1,000,000,000 – 1,000,000,000
-1,000,000,000 – 1,000,000,000
Quick insights
Absolute decrease
50
Decrease amount
50
Quick answer
How do you calculate percentage decrease?
% Decrease = (Old − New) ÷ Old × 100. From 100 to 75: (100−75)÷100×100 = 25% decrease.
How it works
From inputs to result in four steps
A quick walkthrough of what this calculator does behind the scenes.
- 1
Enter the original value.
- 2
Enter the new (decreased) value.
- 3
See the percentage decrease.
Formula
The math behind the number
No black box — here's exactly how the result is computed.
Formula
% Decrease = (Original − New value) ÷ Original × 100
New value = Original × (1 − % / 100)Examples
Real-world scenarios
See how the numbers play out for typical use cases.
Scenario 2
Weight loss
100kg → 85kg = 15% decrease.
Related
Pair this with
Other calculators that work well alongside this one.
General
Percentage Calculator
Calculate what percent one number is of another, find a percentage of a value, or work out percentage change between two numbers.
Open calculatorGeneral
Percentage Increase Calculator
Calculate the percentage increase between two numbers — or find the new value after a percentage increase.
Open calculatorGeneral
Discount Calculator
Calculate the sale price, discount amount, and savings from any original price and discount percentage.
Open calculator