646.15% is the change from 13 to 97
Calculation steps:
[( 97 - 13 ) ÷ 13] x 100 = 646.15%
Formula
Percentage change = [(97 - 13) / 13] x 100
Subtract the new number by the original number
97 - 13 = 84
84 ÷ 13 = 6.461538461538462
6.461538461538462 x 100 = 646.15%