Reverse Percentage Calculator
Find the original value before a percentage was applied.
Reverse Percentage Calculator
Find the original value before a percentage was applied.
%
Real-World Examples
Finding original price before tax
A product costs $120 after a 20% increase. What was the original price?
$100
Sale price reversal
An item costs $75 after a 25% discount. What was the original price?
$100
Common Mistakes to Avoid
Simply subtracting the percentage from the final value
Fix: You must divide by the multiplier (1 ± p/100), not subtract the percentage from the final value.
Using the wrong direction
Fix: Make sure to select increase or decrease correctly — the multiplier changes sign accordingly.