Calculate the percent decrease between two values, or find the new value after a given percentage decrease.
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Mode
Percent decrease
Step-by-step
Difference = Original − New = 200 − 150 = 50
Percent decrease = (Difference ÷ Original) × 100
= (50 ÷ 200) × 100
= 25%
Also in Percentages
Arithmetic
A percent decrease calculator computes the percentage by which a value has fallen. Enter the original and new values to see the percent decrease, absolute difference, and step-by-step work. You can also reverse the calculation to find the new value after a given percentage decrease.
Percent decrease is calculated as ((original − new) ÷ original) × 100. For example, a drop from 200 to 150 is ((200 − 150) ÷ 200) × 100 = 25%.
If the new value is larger than the original, the formula produces a negative result, indicating an increase rather than a decrease.
% decrease = ((original − new) ÷ original) × 100
Standard percent decrease formula.
Frequently asked questions
No — the maximum decrease is 100%, which occurs when the new value is zero. A value cannot decrease by more than its full amount.
Percent decrease is undefined when the original value is zero because division by zero is not possible.
Related
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