-79.58% is the change from 857 to 175
Calculation steps:
[( 175 - 857 ) ÷ 857] x 100 = -79.58%
Formula
Percentage change = [(175 - 857) / 857] x 100
Subtract the new number by the original number
175 - 857 = -682
-682 ÷ 857 = -0.7957992998833139
-0.7957992998833139 x 100 = -79.58%