-94.53% is the change from 256 to 14
Calculation steps:
[( 14 - 256 ) ÷ 256] x 100 = -94.53%
Formula
Percentage change = [(14 - 256) / 256] x 100
Subtract the new number by the original number
14 - 256 = -242
-242 ÷ 256 = -0.9453125
-0.9453125 x 100 = -94.53%