Percentage Reduction Calculator

Use this calculator to work out the reduction amount and the percentage reduction from an original value to a new value.

For UK student maintenance, comparing an older household income total with a lower current-year estimate follows the same “original vs new” idea; see the household income drop calculator for a CYI-oriented view (informational only).

How it works

Percentage reduction = ((Original − New) ÷ Original) × 100