O'Hara Associates sells golf clubs and with each sale of a full set of dubs provides complementary club-fitting services A full set of dubs with the fitting services sells for dollar 1,500. O'Hara estimates that it incurs dollar 60 of staff compensation and other costs to provide the fitting services, and normally earns 30 percentage over cost on similar services. Assuming that the golf dubs and the dub-fitting services are separate performance obligations, estimate the stand-alone selling price of the dub-fitting services using the expected cost plus margin approach. Stand-alone selling price