-84.76% is the change from 820 to 125
Calculation steps:
[( 125 - 820 ) ÷ 820] x 100 = -84.76%
Formula
Percentage change = [(125 - 820) / 820] x 100
Subtract the new number by the original number
125 - 820 = -695
-695 ÷ 820 = -0.8475609756097561
-0.8475609756097561 x 100 = -84.76%