31.3% is the change from 246 to 323
Calculation steps:
[( 323 - 246 ) ÷ 246] x 100 = 31.3%
Formula
Percentage change = [(323 - 246) / 246] x 100
Subtract the new number by the original number
323 - 246 = 77
77 ÷ 246 = 0.3130081300813008
0.3130081300813008 x 100 = 31.3%