-89.71% is the change from 408 to 42
Calculation steps:
[( 42 - 408 ) ÷ 408] x 100 = -89.71%
Formula
Percentage change = [(42 - 408) / 408] x 100
Subtract the new number by the original number
42 - 408 = -366
-366 ÷ 408 = -0.8970588235294118
-0.8970588235294118 x 100 = -89.71%