This calculator handles basic percentages and percent changes for shoppers, students, and anyone checking a suspiciously cheerful statistic.
The interactive percentage calculator loads right here. If it hasn't appeared, refresh the page.
Choose the calculation you need, then enter the known values. You can find a percentage of a number, determine what percent one number is of another, or measure an increase or decrease.
Percentage of a number = percentage ÷ 100 × number. Percent one number is of another = part ÷ whole × 100. Percent change = (new value − original value) ÷ original value × 100.
A monthly charge rises from $48 to $54. The percent change is ($54 − $48) ÷ $48 × 100 = 12.5%, so the charge increased by 12.5%.
A rate moving from 20% to 25% rises by 5 percentage points. Relative to the original rate, that is a 25% increase.
Yes. A negative result means the new value is lower than the original value, so it represents a percent decrease.
More from DoesWhat: free calculators · emoji meanings · quick answers · the DoesWhat blog