-92.08% is the change from 530 to 42
Calculation steps:
[( 42 - 530 ) ÷ 530] x 100 = -92.08%
Formula
Percentage change = [(42 - 530) / 530] x 100
Subtract the new number by the original number
42 - 530 = -488
-488 ÷ 530 = -0.9207547169811321
-0.9207547169811321 x 100 = -92.08%