-5.47% is the change from 256 to 242
Calculation steps:
[( 242 - 256 ) ÷ 256] x 100 = -5.47%
Formula
Percentage change = [(242 - 256) / 256] x 100
Subtract the new number by the original number
242 - 256 = -14
-14 ÷ 256 = -0.0546875
-0.0546875 x 100 = -5.47%