Percentages and basic math

Percentage increase calculator

Calculate how much a value increases and what the new value is after a percentage increase.

Calculate a percentage increase

What the percentage increase calculator shows

The calculator shows the increase amount and the new value after the increase. It uses an original value and an increase percentage. It does not calculate the reverse percentage change between two existing values.

How to use the calculator

Enter the original value and the increase percentage. The original value must be greater than zero, and negative increase percentages are not supported in this calculator. The result shows the new value, increase amount and increase percentage.

How percentage increase is calculated

  • Increase amount = original value * increase percentage / 100.
  • New value = original value + increase amount.
  • When the increase percentage is 0%, the new value is the same as the original value.

Example calculations

  • 100 with a 20% increase gives an increase amount of 20.00 and a new value of 120.00.
  • 59.90 with a 15% increase gives an increase amount of 8.99 and a new value of 68.89.
  • 1,200 with a 2.5% increase gives an increase amount of 30.00 and a new value of 1,230.00.

Increase vs percentage change

A percentage increase calculates a new value from a starting value and a percentage. Percentage change compares two values that already exist. Use the percentage calculator's percentage-change mode if you want to compare a starting value with an ending value.

Limitations and rounding

The calculator handles one increase percentage at a time. It does not decide contracts, wages, taxes or multiple increases in sequence. Results are shown with two decimal places.

Frequently asked questions

Does this calculate the increase percentage between two values?

No. It uses an original value and an increase percentage to calculate the new value.

Can the increase percentage be negative?

Not in this calculator. A negative percentage is a decrease, where the discount calculator or the percentage calculator's decrease mode is usually a better fit.

Can several increases be calculated at once?

No. Calculate several increases step by step, because each next increase often starts from the new value.

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