-92.98% is the change from 570 to 40
Calculation steps:
[( 40 - 570 ) ÷ 570] x 100 = -92.98%
Formula
Percentage change = [(40 - 570) / 570] x 100
Subtract the new number by the original number
40 - 570 = -530
-530 ÷ 570 = -0.9298245614035088
-0.9298245614035088 x 100 = -92.98%