-64% is the change from 625 to 225
Calculation steps:
[( 225 - 625 ) ÷ 625] x 100 = -64%
Formula
Percentage change = [(225 - 625) / 625] x 100
Subtract the new number by the original number
225 - 625 = -400
-400 ÷ 625 = -0.64
-0.64 x 100 = -64%
Example