50.58% is the change from 172 to 259
Calculation steps:
[( 259 - 172 ) ÷ 172] x 100 = 50.58%
Formula
Percentage change = [(259 - 172) / 172] x 100
Subtract the new number by the original number
259 - 172 = 87
87 ÷ 172 = 0.5058139534883721
0.5058139534883721 x 100 = 50.58%