-97.72% is the change from 570 to 13
Calculation steps:
[( 13 - 570 ) ÷ 570] x 100 = -97.72%
Formula
Percentage change = [(13 - 570) / 570] x 100
Subtract the new number by the original number
13 - 570 = -557
-557 ÷ 570 = -0.9771929824561404
-0.9771929824561404 x 100 = -97.72%