564.95% is the change from 97 to 645
Calculation steps:
[( 645 - 97 ) ÷ 97] x 100 = 564.95%
Formula
Percentage change = [(645 - 97) / 97] x 100
Subtract the new number by the original number
645 - 97 = 548
548 ÷ 97 = 5.649484536082475
5.649484536082475 x 100 = 564.95%