-83.75% is the change from 966 to 157
Calculation steps:
[( 157 - 966 ) ÷ 966] x 100 = -83.75%
Formula
Percentage change = [(157 - 966) / 966] x 100
Subtract the new number by the original number
157 - 966 = -809
-809 ÷ 966 = -0.8374741200828157
-0.8374741200828157 x 100 = -83.75%