64.46% is the change from 166 to 273
Calculation steps:
[( 273 - 166 ) ÷ 166] x 100 = 64.46%
Formula
Percentage change = [(273 - 166) / 166] x 100
Subtract the new number by the original number
273 - 166 = 107
107 ÷ 166 = 0.6445783132530121
0.6445783132530121 x 100 = 64.46%