Wizard Corporation has analyzed their customer and order handling data for the past year and has determined the following costs: Order processing cost per order $7 Additional costs if order must be expedited (rushed) $8.00 Customer technical support calls (per call) $12 Relationship management costs (per customer per year) $1200 In addition to these costs, product costs amount to 75% of Sales. In the prior year, Wizard had the following experience with one of its customers, Chester Company: Sales $16,000 Number of orders 160 Percent of orders marked rush 70% Calls to technical support 80