52.75% is the change from 91 to 139
Calculation steps:
[( 139 - 91 ) ÷ 91] x 100 = 52.75%
Formula
Percentage change = [(139 - 91) / 91] x 100
Subtract the new number by the original number
139 - 91 = 48
48 ÷ 91 = 0.5274725274725275
0.5274725274725275 x 100 = 52.75%