-92.63% is the change from 570 to 42
Calculation steps:
[( 42 - 570 ) ÷ 570] x 100 = -92.63%
Formula
Percentage change = [(42 - 570) / 570] x 100
Subtract the new number by the original number
42 - 570 = -528
-528 ÷ 570 = -0.9263157894736842
-0.9263157894736842 x 100 = -92.63%