-81.12% is the change from 662 to 125
Calculation steps:
[( 125 - 662 ) ÷ 662] x 100 = -81.12%
Formula
Percentage change = [(125 - 662) / 662] x 100
Subtract the new number by the original number
125 - 662 = -537
-537 ÷ 662 = -0.8111782477341389
-0.8111782477341389 x 100 = -81.12%