17.65% is the change from 272 to 320
Calculation steps:
[( 320 - 272 ) ÷ 272] x 100 = 17.65%
Formula
Percentage change = [(320 - 272) / 272] x 100
Subtract the new number by the original number
320 - 272 = 48
48 ÷ 272 = 0.17647058823529413
0.17647058823529413 x 100 = 17.65%