-80.97% is the change from 825 to 157
Calculation steps:
[( 157 - 825 ) ÷ 825] x 100 = -80.97%
Formula
Percentage change = [(157 - 825) / 825] x 100
Subtract the new number by the original number
157 - 825 = -668
-668 ÷ 825 = -0.8096969696969697
-0.8096969696969697 x 100 = -80.97%