12.75% is the change from 102 to 115
Calculation steps:
[( 115 - 102 ) ÷ 102] x 100 = 12.75%
Formula
Percentage change = [(115 - 102) / 102] x 100
Subtract the new number by the original number
115 - 102 = 13
13 ÷ 102 = 0.12745098039215685
0.12745098039215685 x 100 = 12.75%