-88.77% is the change from 570 to 64
Calculation steps:
[( 64 - 570 ) ÷ 570] x 100 = -88.77%
Formula
Percentage change = [(64 - 570) / 570] x 100
Subtract the new number by the original number
64 - 570 = -506
-506 ÷ 570 = -0.887719298245614
-0.887719298245614 x 100 = -88.77%