unattributed costs are costs that are not attributed to the cost to produce and or sell something. Often overhead costs are not attributed to the production or sale. To properly account for costs in business there should be no unattributed costs.
executive time is the time (which has value) the executive spends in managing the production and/or sale process. Even if the executive spends no time dealing with the product or service his/her costs must be recovered through the sale of goods and/or services.
full retail is the price charged to store customers. It is the greatest retail price that you would charge for the good or service. If you were selling in quantity you might sell at a discounted retail price.
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