-19.72% is the change from 710 to 570
Calculation steps:
[( 570 - 710 ) ÷ 710] x 100 = -19.72%
Formula
Percentage change = [(570 - 710) / 710] x 100
Subtract the new number by the original number
570 - 710 = -140
-140 ÷ 710 = -0.19718309859154928
-0.19718309859154928 x 100 = -19.72%