Brench Corp. purchases the X from Zam Corp. at $10 a unit. Relevant cost of insurance, material handling, and so on, per year $ 2,5. Brench's annual demand is 20,000 units of X, at a rate of 300 units per week. Brench's requires a 15% annual rate of return on its investment. Relevant ordering cost per purchase order Calculate E0Q, the number deliveries, and annual relevant cost, $100.