403.33% is the change from 30 to 151
Calculation steps:
[( 151 - 30 ) ÷ 30] x 100 = 403.33%
Formula
Percentage change = [(151 - 30) / 30] x 100
Subtract the new number by the original number
151 - 30 = 121
121 ÷ 30 = 4.033333333333333
4.033333333333333 x 100 = 403.33%