50.5% is the change from 404 to 608
Calculation steps:
[( 608 - 404 ) ÷ 404] x 100 = 50.5%
Formula
Percentage change = [(608 - 404) / 404] x 100
Subtract the new number by the original number
608 - 404 = 204
204 ÷ 404 = 0.504950495049505
0.504950495049505 x 100 = 50.5%