26.47% is the change from 102 to 129
Calculation steps:
[( 129 - 102 ) ÷ 102] x 100 = 26.47%
Formula
Percentage change = [(129 - 102) / 102] x 100
Subtract the new number by the original number
129 - 102 = 27
27 ÷ 102 = 0.2647058823529412
0.2647058823529412 x 100 = 26.47%