50.99% is the change from 404 to 610
Calculation steps:
[( 610 - 404 ) ÷ 404] x 100 = 50.99%
Formula
Percentage change = [(610 - 404) / 404] x 100
Subtract the new number by the original number
610 - 404 = 206
206 ÷ 404 = 0.5099009900990099
0.5099009900990099 x 100 = 50.99%