-92.19% is the change from 538 to 42
Calculation steps:
[( 42 - 538 ) ÷ 538] x 100 = -92.19%
Formula
Percentage change = [(42 - 538) / 538] x 100
Subtract the new number by the original number
42 - 538 = -496
-496 ÷ 538 = -0.9219330855018587
-0.9219330855018587 x 100 = -92.19%