-88.21% is the change from 857 to 101
Calculation steps:
[( 101 - 857 ) ÷ 857] x 100 = -88.21%
Formula
Percentage change = [(101 - 857) / 857] x 100
Subtract the new number by the original number
101 - 857 = -756
-756 ÷ 857 = -0.882147024504084
-0.882147024504084 x 100 = -88.21%