Percentage calculator
Four quick percentage sums, worked out as you type.
What is% of=
is what percent of=
Change fromto=
plus or minus% =or
How to use it
- Pick the line that matches your question.
- Type your numbers.
- Read the answer on the right.
Questions
How do I work out a percentage change?
Subtract the old number from the new one, divide by the old number and multiply by 100. From 80 to 92 is a 15% increase.
How do I take 10% off a price?
Multiply the price by 0.9. Use the last line: $200 minus 10% is $180.