Amazing maze sells an organic product for which the annual demand is 5,000 packs. at the moment, it is paying $6.40 for each box; carrying cost is 25% of the unit cost; ordering costs are $25.00. a new supplier has offered to sell the same item for $6.00 if amazing maze buys at least 3,000 boxes per order. how would you suggest to amazing maze on the decision whether to main the existing supplier or select the new one?