507.5% is the change from 120 to 729
Calculation steps:
[( 729 - 120 ) ÷ 120] x 100 = 507.5%
Formula
Percentage change = [(729 - 120) / 120] x 100
Subtract the new number by the original number
729 - 120 = 609
609 ÷ 120 = 5.075
5.075 x 100 = 507.5%
Example