438.96% is the change from 154 to 830
Calculation steps:
[( 830 - 154 ) ÷ 154] x 100 = 438.96%
Formula
Percentage change = [(830 - 154) / 154] x 100
Subtract the new number by the original number
830 - 154 = 676
676 ÷ 154 = 4.3896103896103895
4.3896103896103895 x 100 = 438.96%