50.43% is the change from 115 to 173
Calculation steps:
[( 173 - 115 ) ÷ 115] x 100 = 50.43%
Formula
Percentage change = [(173 - 115) / 115] x 100
Subtract the new number by the original number
173 - 115 = 58
58 ÷ 115 = 0.5043478260869565
0.5043478260869565 x 100 = 50.43%