CONTRIBUTION MARGIN PER UNIT, also known as dollar contribution margin per unit, is the selling price per unit minus the variable cost per unit. The "contribution" represents that portion of sales revenue that is not consumed by variable cost, thereby contributing to the coverage of fixed cost.
DR, in accounting, is an acronym for Debit Record. See DEBIT RECORD.
MODIFIED INTERNAL RATE OF RETURN is the rate of return which equates the initial investment with the terminal value, where the terminal value is the future value of the cash inflows compounded at the required rate of return (the opportunity cost of capital).
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