-84.01% is the change from 857 to 137
Calculation steps:
[( 137 - 857 ) ÷ 857] x 100 = -84.01%
Formula
Percentage change = [(137 - 857) / 857] x 100
Subtract the new number by the original number
137 - 857 = -720
-720 ÷ 857 = -0.8401400233372228
-0.8401400233372228 x 100 = -84.01%