-17.62% is the change from 857 to 706
Calculation steps:
[( 706 - 857 ) ÷ 857] x 100 = -17.62%
Formula
Percentage change = [(706 - 857) / 857] x 100
Subtract the new number by the original number
706 - 857 = -151
-151 ÷ 857 = -0.176196032672112
-0.176196032672112 x 100 = -17.62%