-53.96% is the change from 556 to 256
Calculation steps:
[( 256 - 556 ) ÷ 556] x 100 = -53.96%
Formula
Percentage change = [(256 - 556) / 556] x 100
Subtract the new number by the original number
256 - 556 = -300
-300 ÷ 556 = -0.539568345323741
-0.539568345323741 x 100 = -53.96%