46.15% is the change from 273 to 399
Calculation steps:
[( 399 - 273 ) ÷ 273] x 100 = 46.15%
Formula
Percentage change = [(399 - 273) / 273] x 100
Subtract the new number by the original number
399 - 273 = 126
126 ÷ 273 = 0.46153846153846156
0.46153846153846156 x 100 = 46.15%