APPLY THE CONCEPTS: Determining benefits of negotiated transfer price Assume that Selling Division and Buying Division are both owned by Overall Corporation. Selling Division sells a product that is used by Buying Division and outsid excess capacity. Selling Division currently sells the product for $20 per unit and Buying Division currently buys 25,000 units of the product from an outside source are $4, of which $1 is the cost of selling the product to an outside customer. Using Selling price less avoidable costs as the minimum price, fill in the following formula for the desired transfer price: