51.96% is the change from 102 to 155
Calculation steps:
[( 155 - 102 ) ÷ 102] x 100 = 51.96%
Formula
Percentage change = [(155 - 102) / 102] x 100
Subtract the new number by the original number
155 - 102 = 53
53 ÷ 102 = 0.5196078431372549
0.5196078431372549 x 100 = 51.96%