408% is the change from 50 to 254
Calculation steps:
[( 254 - 50 ) ÷ 50] x 100 = 408%
Formula
Percentage change = [(254 - 50) / 50] x 100
Subtract the new number by the original number
254 - 50 = 204
204 ÷ 50 = 4.08
4.08 x 100 = 408%
Example