900% is the change from 72 to 720
Calculation steps:
[( 720 - 72 ) ÷ 72] x 100 = 900%
Formula
Percentage change = [(720 - 72) / 72] x 100
Subtract the new number by the original number
720 - 72 = 648
648 ÷ 72 = 9
9 x 100 = 900%
Example