73.28% is the change from 479 to 830
Calculation steps:
[( 830 - 479 ) ÷ 479] x 100 = 73.28%
Formula
Percentage change = [(830 - 479) / 479] x 100
Subtract the new number by the original number
830 - 479 = 351
351 ÷ 479 = 0.732776617954071
0.732776617954071 x 100 = 73.28%