-90.39% is the change from 406 to 39
Calculation steps:
[( 39 - 406 ) ÷ 406] x 100 = -90.39%
Formula
Percentage change = [(39 - 406) / 406] x 100
Subtract the new number by the original number
39 - 406 = -367
-367 ÷ 406 = -0.9039408866995073
-0.9039408866995073 x 100 = -90.39%