65.66% is the change from 166 to 275
Calculation steps:
[( 275 - 166 ) ÷ 166] x 100 = 65.66%
Formula
Percentage change = [(275 - 166) / 166] x 100
Subtract the new number by the original number
275 - 166 = 109
109 ÷ 166 = 0.6566265060240963
0.6566265060240963 x 100 = 65.66%