140.36% is the change from 166 to 399
Calculation steps:
[( 399 - 166 ) ÷ 166] x 100 = 140.36%
Formula
Percentage change = [(399 - 166) / 166] x 100
Subtract the new number by the original number
399 - 166 = 233
233 ÷ 166 = 1.4036144578313252
1.4036144578313252 x 100 = 140.36%