503.33% is the change from 30 to 181
Calculation steps:
[( 181 - 30 ) ÷ 30] x 100 = 503.33%
Formula
Percentage change = [(181 - 30) / 30] x 100
Subtract the new number by the original number
181 - 30 = 151
151 ÷ 30 = 5.033333333333333
5.033333333333333 x 100 = 503.33%