-24.71% is the change from 425 to 320
Calculation steps:
[( 320 - 425 ) ÷ 425] x 100 = -24.71%
Formula
Percentage change = [(320 - 425) / 425] x 100
Subtract the new number by the original number
320 - 425 = -105
-105 ÷ 425 = -0.24705882352941178
-0.24705882352941178 x 100 = -24.71%