Percentage Calculator
Enter any two values — click = to pick which one is calculated.
Values
%
How It Works
Enter any two of the three values — Percentage, Whole, and Part — and click the = button
on the row you want calculated. The relationship is always: Part = (Percentage / 100) × Whole.
Common uses: discounts (20% off $80 = $16 savings), tax (8.5% of $45 = $3.83), grades (42 out of 50 = 84%), tips, and growth rates (revenue grew from $200 to $250 — that's 25% of 200 = 50, so a 25% increase).