A unit contribution margin measures: Group of answer choices The difference between price and variable cost per unit The difference between sales and cost of goods sold on a unit basis The difference between unit sales and total costs per unit The percentage difference between sales and cost of goods sold

housewives doing day to day to work like cooking, laundry and so on.

a person doing a work for hobby like gardening, fishing, painting and so on.

work done for charity like taking tuition classes of poor children, providing free services to earthquake victims, a blind man in crossing road and so on.

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