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Contribution Margin: Formula, P/V Ratio & Example

Definition

Contribution margin is selling price minus variable cost. It is the amount each sale contributes first towards fixed costs and then to profit; as a percentage of sales it is called the contribution margin ratio or P/V ratio.

Key facts
TermContribution margin
In Hindiअंशदान (योगदान) मार्जिन
AreaAccounting
Search phrasecontribution margin
Try itBreak-even calculator

अंशदान (योगदान) मार्जिन — हिंदी में अर्थ

अंशदान मार्जिन बिक्री मूल्य घटा परिवर्ती लागत है। यह वह राशि है जो हर बिक्री पहले स्थिर लागत को और फिर लाभ को देती है; बिक्री के प्रतिशत के रूप में इसे P/V अनुपात कहते हैं।

Formulas

Contribution per unit = Selling price − Variable cost per unit. Total contribution = Sales − Total variable cost = Fixed cost + Profit. P/V ratio = Contribution ÷ Sales × 100. Break-even units = Fixed cost ÷ Contribution per unit; break-even sales = Fixed cost ÷ P/V ratio.

Variable costs move with output — raw material, consumables, power used by machines, piece-rate labour, packing, freight out. Fixed costs stay the same over a range — rent, salaries, interest, depreciation.

How factories use it

Contribution decides which products to push when capacity is short (rank by contribution per machine hour, not per unit), whether to accept a low-price export or bulk order (yes if price covers variable cost and capacity is idle), and whether to make or buy a component. A product with a thin margin after fixed-cost allocation can still have healthy contribution.

Example

A panel sells for ₹500 with variable cost ₹300: contribution ₹200 per unit, P/V ratio 40%. Fixed costs ₹6,00,000 a month → break-even = 6,00,000 ÷ 200 = 3,000 units, or ₹15,00,000 of sales. At 4,000 units, profit = 1,000 × ₹200 = ₹2,00,000.

Related tools and guides

Frequently asked questions

What is contribution margin in simple words?

What is left from each sale after paying its variable costs, available to cover fixed costs and then give profit.

What is the P/V ratio?

Profit/volume ratio — contribution as a percentage of sales. It is the same as the contribution margin ratio.

How is contribution different from gross profit?

Gross profit deducts cost of goods sold, which includes fixed factory overheads. Contribution deducts only variable costs.

Can contribution be negative?

Yes, if price is below variable cost — then every unit sold increases the loss, and the order should usually be refused.

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