11.72% is the change from 128 to 143
Calculation steps:
[( 143 - 128 ) ÷ 128] x 100 = 11.72%
Formula
Percentage change = [(143 - 128) / 128] x 100
Subtract the new number by the original number
143 - 128 = 15
15 ÷ 128 = 0.1171875
0.1171875 x 100 = 11.72%