-79.46% is the change from 857 to 176
Calculation steps:
[( 176 - 857 ) ÷ 857] x 100 = -79.46%
Formula
Percentage change = [(176 - 857) / 857] x 100
Subtract the new number by the original number
176 - 857 = -681
-681 ÷ 857 = -0.79463243873979
-0.79463243873979 x 100 = -79.46%