69.61% is the change from 102 to 173
Calculation steps:
[( 173 - 102 ) ÷ 102] x 100 = 69.61%
Formula
Percentage change = [(173 - 102) / 102] x 100
Subtract the new number by the original number
173 - 102 = 71
71 ÷ 102 = 0.696078431372549
0.696078431372549 x 100 = 69.61%