-87.37% is the change from 396 to 50
Calculation steps:
[( 50 - 396 ) ÷ 396] x 100 = -87.37%
Formula
Percentage change = [(50 - 396) / 396] x 100
Subtract the new number by the original number
50 - 396 = -346
-346 ÷ 396 = -0.8737373737373737
-0.8737373737373737 x 100 = -87.37%