17.43% is the change from 109 to 128
Calculation steps:
[( 128 - 109 ) ÷ 109] x 100 = 17.43%
Formula
Percentage change = [(128 - 109) / 109] x 100
Subtract the new number by the original number
128 - 109 = 19
19 ÷ 109 = 0.1743119266055046
0.1743119266055046 x 100 = 17.43%