Screen printing costings are broken in three parts.

The garments to be printed on.

Setup: The film outputs and transferring design onto screens.
Print: The printing of the garments.

Blank T-Shirts start at $5 each.
OPM Design charges $40 per setup.
The initial print is $3.
Add $1 for every colour after the first.
Eg: Two colours is $4. Three Colours is $5 so on and so forth.