-87.99% is the change from 408 to 49
Calculation steps:
[( 49 - 408 ) ÷ 408] x 100 = -87.99%
Formula
Percentage change = [(49 - 408) / 408] x 100
Subtract the new number by the original number
49 - 408 = -359
-359 ÷ 408 = -0.8799019607843137
-0.8799019607843137 x 100 = -87.99%