-18.57% is the change from 700 to 570
Calculation steps:
[( 570 - 700 ) ÷ 700] x 100 = -18.57%
Formula
Percentage change = [(570 - 700) / 700] x 100
Subtract the new number by the original number
570 - 700 = -130
-130 ÷ 700 = -0.18571428571428572
-0.18571428571428572 x 100 = -18.57%