CompuTime Center sells a full assortment of computer parts, including motherboards, video cards, and cables. It also offers complementary computer assembly services. A customer places an order for an advanced workstation, and CompuTime asks for $3,500. If CompuTime were to sell only the parts in an advanced workstation, with no assembly, the price would be $3,300. Required: Assuming that computer parts and assembly service are separate performance obligations, estimate the stand-alone selling price of the assembly service based on the residual approach. Stand-alone selling price