-82.15% is the change from 857 to 153
Calculation steps:
[( 153 - 857 ) ÷ 857] x 100 = -82.15%
Formula
Percentage change = [(153 - 857) / 857] x 100
Subtract the new number by the original number
153 - 857 = -704
-704 ÷ 857 = -0.8214702450408401
-0.8214702450408401 x 100 = -82.15%