Percent means out of 100
To find 15% of 200, divide 15 by 100 and multiply by 200. The result is 30. This is useful for discounts, proportions, and everyday comparisons.
Turn a fraction into a percentage
To find what percentage 30 is of 200, divide 30 by 200 and multiply by 100. The result is 15%. Your base value cannot be zero.
Understand percentage change
For a positive starting value, subtract the original value from the new value, divide by the original, and multiply by 100. A change from 50 to 60 is a 20% increase.
Percentage points are different
If a rate moves from 10% to 15%, that is a rise of 5 percentage points. Relative to the original rate, the increase is 50%. Always make clear which comparison you mean.