6.25% is the change from 256 to 272
Calculation steps:
[( 272 - 256 ) ÷ 256] x 100 = 6.25%
Formula
Percentage change = [(272 - 256) / 256] x 100
Subtract the new number by the original number
272 - 256 = 16
16 ÷ 256 = 0.0625
0.0625 x 100 = 6.25%
Example