Wilson Links Products sells a product that involves two separate performance obligations: the SwingRight golf club weight and the SwingCoach teaching software. SwingRight has a stand-alone selling price of $250. Wilson sells both the SwingRight and the SwingCoach as a package deal for $400. The SwingCoach software is not sold separately. Wilson is aware that other vendors charge $300 for similar software, and Wilsons prices are generally 10% lower than what is charged by those vendors. Wilson estimates that it incurs approximately $165 of cost per copy of the software, and usually charges 50% above cost on similar products. Estimate the stand-alone selling price of the software using the residual approach.