19.32% is the change from 409 to 488
Calculation steps:
[( 488 - 409 ) ÷ 409] x 100 = 19.32%
Formula
Percentage change = [(488 - 409) / 409] x 100
Subtract the new number by the original number
488 - 409 = 79
79 ÷ 409 = 0.19315403422982885
0.19315403422982885 x 100 = 19.32%