-57.4% is the change from 601 to 256
Calculation steps:
[( 256 - 601 ) ÷ 601] x 100 = -57.4%
Formula
Percentage change = [(256 - 601) / 601] x 100
Subtract the new number by the original number
256 - 601 = -345
-345 ÷ 601 = -0.5740432612312812
-0.5740432612312812 x 100 = -57.4%