10.94% is the change from 256 to 284
Calculation steps:
[( 284 - 256 ) ÷ 256] x 100 = 10.94%
Formula
Percentage change = [(284 - 256) / 256] x 100
Subtract the new number by the original number
284 - 256 = 28
28 ÷ 256 = 0.109375
0.109375 x 100 = 10.94%