-91.37% is the change from 857 to 74
Calculation steps:
[( 74 - 857 ) ÷ 857] x 100 = -91.37%
Formula
Percentage change = [(74 - 857) / 857] x 100
Subtract the new number by the original number
74 - 857 = -783
-783 ÷ 857 = -0.9136522753792299
-0.9136522753792299 x 100 = -91.37%