55.56% is the change from 171 to 266
Calculation steps:
[( 266 - 171 ) ÷ 171] x 100 = 55.56%
Formula
Percentage change = [(266 - 171) / 171] x 100
Subtract the new number by the original number
266 - 171 = 95
95 ÷ 171 = 0.5555555555555556
0.5555555555555556 x 100 = 55.56%