9.79% is the change from 143 to 157
Calculation steps:
[( 157 - 143 ) ÷ 143] x 100 = 9.79%
Formula
Percentage change = [(157 - 143) / 143] x 100
Subtract the new number by the original number
157 - 143 = 14
14 ÷ 143 = 0.0979020979020979
0.0979020979020979 x 100 = 9.79%