691.21% is the change from 91 to 720
Calculation steps:
[( 720 - 91 ) ÷ 91] x 100 = 691.21%
Formula
Percentage change = [(720 - 91) / 91] x 100
Subtract the new number by the original number
720 - 91 = 629
629 ÷ 91 = 6.912087912087912
6.912087912087912 x 100 = 691.21%