51.46% is the change from 171 to 259
Calculation steps:
[( 259 - 171 ) ÷ 171] x 100 = 51.46%
Formula
Percentage change = [(259 - 171) / 171] x 100
Subtract the new number by the original number
259 - 171 = 88
88 ÷ 171 = 0.5146198830409356
0.5146198830409356 x 100 = 51.46%