-19.58% is the change from 710 to 571
Calculation steps:
[( 571 - 710 ) ÷ 710] x 100 = -19.58%
Formula
Percentage change = [(571 - 710) / 710] x 100
Subtract the new number by the original number
571 - 710 = -139
-139 ÷ 710 = -0.19577464788732393
-0.19577464788732393 x 100 = -19.58%