21.25% is the change from 273 to 331
Calculation steps:
[( 331 - 273 ) ÷ 273] x 100 = 21.25%
Formula
Percentage change = [(331 - 273) / 273] x 100
Subtract the new number by the original number
331 - 273 = 58
58 ÷ 273 = 0.21245421245421245
0.21245421245421245 x 100 = 21.25%