-81.15% is the change from 663 to 125
Calculation steps:
[( 125 - 663 ) ÷ 663] x 100 = -81.15%
Formula
Percentage change = [(125 - 663) / 663] x 100
Subtract the new number by the original number
125 - 663 = -538
-538 ÷ 663 = -0.8114630467571644
-0.8114630467571644 x 100 = -81.15%