Money
Percentage calculator
A percent of an amount is the percent divided by 100, then multiplied by the amount. Change is the new number minus the old one, divided by the absolute value of the old number. What percent one number is of another is the part divided by the whole. A zero starting value, or a zero whole, has no percentage.
Result
30
This stays in your browser. JiffHub does not receive the numbers you type.
Questions
Why is change blank when the first number is zero?
Dividing by zero is undefined. Type a starting number other than zero.
Is this VAT?
No. VAT uses the legal rate for a country. This page is plain percentage arithmetic.