-15.52% is the change from 857 to 724
Calculation steps:
[( 724 - 857 ) ÷ 857] x 100 = -15.52%
Formula
Percentage change = [(724 - 857) / 857] x 100
Subtract the new number by the original number
724 - 857 = -133
-133 ÷ 857 = -0.15519253208868145
-0.15519253208868145 x 100 = -15.52%