72.92% is the change from 480 to 830
Calculation steps:
[( 830 - 480 ) ÷ 480] x 100 = 72.92%
Formula
Percentage change = [(830 - 480) / 480] x 100
Subtract the new number by the original number
830 - 480 = 350
350 ÷ 480 = 0.7291666666666666
0.7291666666666666 x 100 = 72.92%