Vendor A agrees to sell products A1, A2 and A3 to a customer…

Vendor A agrees to sell products A1, A2 and A3 to a customer. Vendor A normally sells products A1 and A2 on a stand-alone basis and thus has data on the stand-alone sales price of those two products. Vendor A does NOT sell product A3 on a stand-alone basis. Identify and briefly describe the 3 GAAP-approved methods that Vendor A might use to estimate the stand-alone selling price of A3.