Percentage Calculator
Our Percentage Calculator quickly calculates percentages, percentage increases, decreases, differences, and ratios. It is useful for finance, academics, shopping discounts, and everyday calculations.
Find the value that equals a given percentage of a number.
e.g. 25 for 25%
The base number
Result
50
%
Formula
25% × 200 = 50Breakdown
Percentage
25%
Base value
200
Result
50
Remaining
150
Quick Reference
- X% of YDiscount, tip, tax calculations
- % ChangePrice changes, growth rates
- % DifferenceComparing two independent values
- X of Y = ?%Score out of total, market share
- IncreaseMarkup, salary raise, price hike
- DecreaseSale price, reduction, markdown
Common Formulas
- X% of Y:
(X ÷ 100) × Y - % Change:
((New − Old) ÷ |Old|) × 100 - % Difference:
|A − B| ÷ ((A + B) ÷ 2) × 100 - Part of Whole:
(Part ÷ Whole) × 100 - After increase:
Value × (1 + Rate ÷ 100) - After decrease:
Value × (1 − Rate ÷ 100)