174.83% is the change from 302 to 830
Calculation steps:
[( 830 - 302 ) ÷ 302] x 100 = 174.83%
Formula
Percentage change = [(830 - 302) / 302] x 100
Subtract the new number by the original number
830 - 302 = 528
528 ÷ 302 = 1.7483443708609272
1.7483443708609272 x 100 = 174.83%