-29.89% is the change from 813 to 570
Calculation steps:
[( 570 - 813 ) ÷ 813] x 100 = -29.89%
Formula
Percentage change = [(570 - 813) / 813] x 100
Subtract the new number by the original number
570 - 813 = -243
-243 ÷ 813 = -0.2988929889298893
-0.2988929889298893 x 100 = -29.89%