-91.39% is the change from 488 to 42
Calculation steps:
[( 42 - 488 ) ÷ 488] x 100 = -91.39%
Formula
Percentage change = [(42 - 488) / 488] x 100
Subtract the new number by the original number
42 - 488 = -446
-446 ÷ 488 = -0.9139344262295082
-0.9139344262295082 x 100 = -91.39%