500% is the change from 30 to 180
Calculation steps:
[( 180 - 30 ) ÷ 30] x 100 = 500%
Formula
Percentage change = [(180 - 30) / 30] x 100
Subtract the new number by the original number
180 - 30 = 150
150 ÷ 30 = 5
5 x 100 = 500%
Example