67.03% is the change from 273 to 456
Calculation steps:
[( 456 - 273 ) ÷ 273] x 100 = 67.03%
Formula
Percentage change = [(456 - 273) / 273] x 100
Subtract the new number by the original number
456 - 273 = 183
183 ÷ 273 = 0.6703296703296703
0.6703296703296703 x 100 = 67.03%