49.71% is the change from 173 to 259
Calculation steps:
[( 259 - 173 ) ÷ 173] x 100 = 49.71%
Formula
Percentage change = [(259 - 173) / 173] x 100
Subtract the new number by the original number
259 - 173 = 86
86 ÷ 173 = 0.49710982658959535
0.49710982658959535 x 100 = 49.71%