136.26% is the change from 91 to 215
Calculation steps:
[( 215 - 91 ) ÷ 91] x 100 = 136.26%
Formula
Percentage change = [(215 - 91) / 91] x 100
Subtract the new number by the original number
215 - 91 = 124
124 ÷ 91 = 1.3626373626373627
1.3626373626373627 x 100 = 136.26%