-17.27% is the change from 857 to 709
Calculation steps:
[( 709 - 857 ) ÷ 857] x 100 = -17.27%
Formula
Percentage change = [(709 - 857) / 857] x 100
Subtract the new number by the original number
709 - 857 = -148
-148 ÷ 857 = -0.17269544924154026
-0.17269544924154026 x 100 = -17.27%