Percentage Calculator
Five free percentage calculators in one. Results update as you type.
1
What is % of a number?
Find the percentage of any number — discounts, tax, tip
What is
%
of
?
—
0
2
What percentage is one number of another?
Find what percent A is of B — scores, completion rate
is what % of
?
—
0%
3
Percentage increase / decrease
Find percentage change between two values
From
to
—
DecreaseNo changeIncrease
4
Find the original value before a % change
Reverse-calculate original price before discount or tax
If
is
% of original
—
100%
5
Add or subtract a percentage
Increase or decrease a number by a percentage
%
—
—
—
How to calculate percentages
% of a number
Result = (X ÷ 100) × N
25% of 200 = 50
What % is A of B
Result = (A ÷ B) × 100
50 of 200 = 25%
% change
Result = ((B−A) ÷ A) × 100
80 to 100 = +25%
Original value
Original = Value ÷ (% ÷ 100)
120 is 150% → 80