-90.39% is the change from 437 to 42
Calculation steps:
[( 42 - 437 ) ÷ 437] x 100 = -90.39%
Formula
Percentage change = [(42 - 437) / 437] x 100
Subtract the new number by the original number
42 - 437 = -395
-395 ÷ 437 = -0.9038901601830663
-0.9038901601830663 x 100 = -90.39%