19.9% is the change from 407 to 488
Calculation steps:
[( 488 - 407 ) ÷ 407] x 100 = 19.9%
Formula
Percentage change = [(488 - 407) / 407] x 100
Subtract the new number by the original number
488 - 407 = 81
81 ÷ 407 = 0.19901719901719903
0.19901719901719903 x 100 = 19.9%