4912.5% is the change from 8 to 401
Calculation steps:
[( 401 - 8 ) ÷ 8] x 100 = 4912.5%
Formula
Percentage change = [(401 - 8) / 8] x 100
Subtract the new number by the original number
401 - 8 = 393
393 ÷ 8 = 49.125
49.125 x 100 = 4912.5%
Example