20.13% is the change from 159 to 191
Calculation steps:
[( 191 - 159 ) ÷ 159] x 100 = 20.13%
Formula
Percentage change = [(191 - 159) / 159] x 100
Subtract the new number by the original number
191 - 159 = 32
32 ÷ 159 = 0.20125786163522014
0.20125786163522014 x 100 = 20.13%