First we should investigate the Rocket League Trading actual decal. The 20xx is a Black.

Market decal comes in two structures: Unpainted and Painted.

There are 13 Painted variants of the decal going from Gray to Burnt Sienna to Purple. While any Painted form is clearly more costly than the Unpainted adaptation, the cost of various Painted forms likewise change. The RPGAH.COM making cost likewise fluctuates between every form of the 20xx decal.