720% is the change from 30 to 246
Calculation steps:
[( 246 - 30 ) ÷ 30] x 100 = 720%
Formula
Percentage change = [(246 - 30) / 30] x 100
Subtract the new number by the original number
246 - 30 = 216
216 ÷ 30 = 7.2
7.2 x 100 = 720%
Example