-55.95% is the change from 908 to 400
Calculation steps:
[( 400 - 908 ) ÷ 908] x 100 = -55.95%
Formula
Percentage change = [(400 - 908) / 908] x 100
Subtract the new number by the original number
400 - 908 = -508
-508 ÷ 908 = -0.5594713656387665
-0.5594713656387665 x 100 = -55.95%