453.33% is the change from 150 to 830
Calculation steps:
[( 830 - 150 ) ÷ 150] x 100 = 453.33%
Formula
Percentage change = [(830 - 150) / 150] x 100
Subtract the new number by the original number
830 - 150 = 680
680 ÷ 150 = 4.533333333333333
4.533333333333333 x 100 = 453.33%