20.88% is the change from 273 to 330
Calculation steps:
[( 330 - 273 ) ÷ 273] x 100 = 20.88%
Formula
Percentage change = [(330 - 273) / 273] x 100
Subtract the new number by the original number
330 - 273 = 57
57 ÷ 273 = 0.2087912087912088
0.2087912087912088 x 100 = 20.88%