-42.6% is the change from 446 to 256
Calculation steps:
[( 256 - 446 ) ÷ 446] x 100 = -42.6%
Formula
Percentage change = [(256 - 446) / 446] x 100
Subtract the new number by the original number
256 - 446 = -190
-190 ÷ 446 = -0.4260089686098655
-0.4260089686098655 x 100 = -42.6%