Problem of cost-plus pricing

Anyone who agrees to pay 'cost plus' is guaranteeing the vendor a profit no matter how badly or sloppily the vendor company is managed. 'Cost plus' removes any incentive for the vendor to reduce waste, maximize production, or do anything at all that is good for the customer. If the 'cost plus' is a percentage then the more money the vendor spends to deliver the goods, the greater his guaranteed profit.