74.73% is the change from 91 to 159
Calculation steps:
[( 159 - 91 ) ÷ 91] x 100 = 74.73%
Formula
Percentage change = [(159 - 91) / 91] x 100
Subtract the new number by the original number
159 - 91 = 68
68 ÷ 91 = 0.7472527472527473
0.7472527472527473 x 100 = 74.73%