-54.85% is the change from 567 to 256
Calculation steps:
[( 256 - 567 ) ÷ 567] x 100 = -54.85%
Formula
Percentage change = [(256 - 567) / 567] x 100
Subtract the new number by the original number
256 - 567 = -311
-311 ÷ 567 = -0.5485008818342152
-0.5485008818342152 x 100 = -54.85%