646.15% is the change from 91 to 679
Calculation steps:
[( 679 - 91 ) ÷ 91] x 100 = 646.15%
Formula
Percentage change = [(679 - 91) / 91] x 100
Subtract the new number by the original number
679 - 91 = 588
588 ÷ 91 = 6.461538461538462
6.461538461538462 x 100 = 646.15%