28.63% is the change from 248 to 319
Calculation steps:
[( 319 - 248 ) ÷ 248] x 100 = 28.63%
Formula
Percentage change = [(319 - 248) / 248] x 100
Subtract the new number by the original number
319 - 248 = 71
71 ÷ 248 = 0.2862903225806452
0.2862903225806452 x 100 = 28.63%