31.15% is the change from 244 to 320
Calculation steps:
[( 320 - 244 ) ÷ 244] x 100 = 31.15%
Formula
Percentage change = [(320 - 244) / 244] x 100
Subtract the new number by the original number
320 - 244 = 76
76 ÷ 244 = 0.3114754098360656
0.3114754098360656 x 100 = 31.15%