632.97% is the change from 91 to 667
Calculation steps:
[( 667 - 91 ) ÷ 91] x 100 = 632.97%
Formula
Percentage change = [(667 - 91) / 91] x 100
Subtract the new number by the original number
667 - 91 = 576
576 ÷ 91 = 6.329670329670329
6.329670329670329 x 100 = 632.97%