% Percentage Calculator
Calculate percentages instantly — find percent of a number, percentage change, what percent one number is of another, and more.
What is X% of Y?
What is
% of
?
30
Formula: (X ÷ 100) × Y
X is what % of Y?
is what % of
?
15%
Formula: (X ÷ Y) × 100
Percentage Change (Increase / Decrease)
From
to
=
+50%
Formula: ((New − Old) ÷ Old) × 100
Add / Remove Percentage
%
=
1180
Formula: 1000 + (18% × 1000) = 1180
How to Calculate Percentages
How do I find X% of a number?
Multiply the number by X and divide by 100. Example: 15% of 200 = (15 × 200) ÷ 100 = 30.
How do I calculate percentage increase?
Subtract old value from new, divide by old value, multiply by 100. Example: from 100 to 150 = ((150−100)÷100)×100 = 50% increase.
What is 18% GST on ₹1000?
18% of 1000 = 180. So the total with GST = ₹1180. Use our "Add Percentage" calculator above for quick GST calculations.