56.02% is the change from 166 to 259
Calculation steps:
[( 259 - 166 ) ÷ 166] x 100 = 56.02%
Formula
Percentage change = [(259 - 166) / 166] x 100
Subtract the new number by the original number
259 - 166 = 93
93 ÷ 166 = 0.5602409638554217
0.5602409638554217 x 100 = 56.02%