20.89% is the change from 158 to 191
Calculation steps:
[( 191 - 158 ) ÷ 158] x 100 = 20.89%
Formula
Percentage change = [(191 - 158) / 158] x 100
Subtract the new number by the original number
191 - 158 = 33
33 ÷ 158 = 0.2088607594936709
0.2088607594936709 x 100 = 20.89%