-21.92% is the change from 730 to 570
Calculation steps:
[( 570 - 730 ) ÷ 730] x 100 = -21.92%
Formula
Percentage change = [(570 - 730) / 730] x 100
Subtract the new number by the original number
570 - 730 = -160
-160 ÷ 730 = -0.2191780821917808
-0.2191780821917808 x 100 = -21.92%