629.67% is the change from 91 to 664
Calculation steps:
[( 664 - 91 ) ÷ 91] x 100 = 629.67%
Formula
Percentage change = [(664 - 91) / 91] x 100
Subtract the new number by the original number
664 - 91 = 573
573 ÷ 91 = 6.2967032967032965
6.2967032967032965 x 100 = 629.67%