-16.92% is the change from 857 to 712
Calculation steps:
[( 712 - 857 ) ÷ 857] x 100 = -16.92%
Formula
Percentage change = [(712 - 857) / 857] x 100
Subtract the new number by the original number
712 - 857 = -145
-145 ÷ 857 = -0.1691948658109685
-0.1691948658109685 x 100 = -16.92%