Gamma Company produces cars. Two of the profit centers, Tires center and Assembly center, were in conflict over the price of tires. External suppliers of tires offered Rania, the manager of the Assembly center, the same type and quality of tire for $200. Rania used to buy these tires internally for $300 each. Jamil the CEO of the company called for a meeting with the managers of both centers in order to solve the issue. Kamil the manager of the Tires Centre explained that: "The tires we produce have been a trusted brand for over 60 years and are distributed by Gamma Company to members all over the globe. Our tires have long been recognized as a leading private brand since 1954." Tires Center: Cost per tire S Direct materials 95 Direct labor 54 Variable overheads 25 Fixed overheads 36 Total cost 210 Rania answered that the external suppliers offered the same specifications and quality for a $100 less, and that she should be able to buy them internally at least at the same price. Required: 1. Advise and justify whether the Assembly Centre should to buy tires from inside or outside the firm. (130 words)