Mo-Kan Company incurs a $6 per unit cost for Product A, which it currently manufactures and sells for $9 per unit. Instead of manufacturing and selling this product, the company can purchase Product B for $5 per unit and sell it for $8 per unit. If it does so, unit sales would remain unchanged and $5 of the $6 per unit costs assigned to Product A would be eliminated. Should the company continue to manufacture Product A or purchase Product B for resale?