-78.88% is the change from 857 to 181
Calculation steps:
[( 181 - 857 ) ÷ 857] x 100 = -78.88%
Formula
Percentage change = [(181 - 857) / 857] x 100
Subtract the new number by the original number
181 - 857 = -676
-676 ÷ 857 = -0.7887981330221704
-0.7887981330221704 x 100 = -78.88%