17.78% is the change from 135 to 159
Calculation steps:
[( 159 - 135 ) ÷ 135] x 100 = 17.78%
Formula
Percentage change = [(159 - 135) / 135] x 100
Subtract the new number by the original number
159 - 135 = 24
24 ÷ 135 = 0.17777777777777778
0.17777777777777778 x 100 = 17.78%