3.23% is the change from 248 to 256
Calculation steps:
[( 256 - 248 ) ÷ 248] x 100 = 3.23%
Formula
Percentage change = [(256 - 248) / 248] x 100
Subtract the new number by the original number
256 - 248 = 8
8 ÷ 248 = 0.03225806451612903
0.03225806451612903 x 100 = 3.23%