53.01% is the change from 166 to 254
Calculation steps:
[( 254 - 166 ) ÷ 166] x 100 = 53.01%
Formula
Percentage change = [(254 - 166) / 166] x 100
Subtract the new number by the original number
254 - 166 = 88
88 ÷ 166 = 0.5301204819277109
0.5301204819277109 x 100 = 53.01%