by Marginal costing is an important technique of cost accounting that helps management make various business decisions by focusing on variable costs and contribution. It provides relevant information regarding costs, profits, and sales, enabling managers to choose the most profitable alternative. Since fixed costs are treated as period costs, marginal costing emphasizes the contribution generated by different decisions and supports efficient utilization of resources.
Applications of Marginal Costing in Decision Making
1. Fixation of Selling Price
Marginal costing plays an important role in fixing the selling price of a product. Under this technique, management considers only variable costs and contribution while making pricing decisions. It is particularly useful during periods of intense competition, economic recession, market penetration, and when excess production capacity exists. The company can fix a price that covers variable costs and contributes towards fixed costs and profits. It also helps management determine minimum acceptable prices for special situations without affecting long-term profitability. By analyzing contribution margins, managers can formulate effective pricing policies and remain competitive in the market.
Example: A company manufactures a product at a variable cost of ₹80 per unit and normally sells it for ₹120. During a recession, it may accept orders at ₹95 per unit because the price still provides a contribution of ₹15 per unit.
2. Profit Planning
Marginal costing is an important tool for profit planning because it helps estimate profits at various levels of sales and production. Management can determine the sales volume required to achieve a desired level of profit by using contribution and the Profit-Volume Ratio. It also enables managers to study the effect of changes in selling price, costs, and sales volume on profitability. This information is useful in preparing budgets, setting targets, and formulating future business strategies. Through proper profit planning, organizations can allocate resources efficiently and improve financial performance.
Example: If a company has fixed costs of ₹3,00,000 and desires a profit of ₹2,00,000 with a P/V Ratio of 40%, the required sales are ₹12,50,000.
3. Determination of Break-Even Point
Marginal costing is widely used for determining the break-even point, which is the level of sales where total revenue equals total costs and there is no profit or loss. The break-even point helps management understand the minimum sales required to avoid losses. It also assists in setting sales targets and evaluating business risk. By knowing the break-even point, organizations can plan production, pricing, and marketing activities more effectively. The information is valuable in assessing the feasibility of new projects and expansion plans.
Example: If fixed costs are ₹2,00,000 and contribution per unit is ₹50, the break-even point will be 4,000 units. Sales beyond this level will generate profits for the organization.
4. Product Mix Decisions
Organizations producing multiple products often face the problem of selecting the most profitable product combination. Marginal costing helps management compare the contribution generated by different products and determine the optimum product mix. When resources are limited, products with higher contribution margins are given priority because they contribute more towards profits. This technique ensures efficient utilization of available resources and maximization of overall profitability.
Example: Product A generates a contribution of ₹60 per unit, while Product B generates ₹40 per unit. If production capacity is limited, management may allocate more resources to Product A to maximize profits.
5. Make or Buy Decisions
Marginal costing assists management in deciding whether a product or component should be manufactured internally or purchased from an outside supplier. The decision is based on comparing the relevant costs of manufacturing with the purchase price. If buying is cheaper than producing, management may decide to purchase the component. Conversely, if internal production is more economical, manufacturing is preferred. This decision helps organizations minimize costs and improve profitability.
Example: A component costs ₹90 to manufacture internally but is available in the market for ₹80. Since buying is cheaper, management may decide to purchase the component and save ₹10 per unit.
6. Acceptance of Special Orders
A company may receive special orders at prices lower than its normal selling price. Marginal costing helps determine whether such orders should be accepted by comparing the special order price with variable costs. If the order price covers variable costs and provides some contribution towards fixed costs, it may be accepted, particularly when there is idle capacity. This approach helps improve profitability without affecting regular business.
Example: A product normally sells for ₹150, and its variable cost is ₹100. An export order is received at ₹120. Since the order provides a contribution of ₹20 per unit, the company may accept it.
7. Selection of Profitable Products
Marginal costing helps management identify products that generate the highest contribution and profitability. Products with low or negative contribution may be discontinued or redesigned. By focusing on profitable products, organizations can improve their financial performance and utilize resources more efficiently. The technique also assists in introducing new products and evaluating existing product lines.
Example: If Product X contributes ₹80 per unit and Product Y contributes ₹30 per unit, management may focus more on Product X because it contributes more towards fixed costs and profits.
8. Decision to Continue or Shut Down Operations
During periods of losses or low demand, marginal costing helps management decide whether operations should continue or be temporarily shut down. The decision depends on whether contribution is sufficient to cover avoidable fixed costs. If contribution exceeds avoidable costs, operations should continue. If not, temporary closure may be advisable to minimize losses.
Example: A factory incurs fixed costs of ₹2,50,000 but generates a contribution of ₹3,00,000. Since contribution exceeds fixed costs, it is beneficial to continue operations despite a temporary decline in demand.
9. Determination of Sales Mix
Marginal costing assists management in determining the most profitable sales mix among different products. Since products have different contribution margins, selecting the right sales mix can significantly improve overall profitability. Management allocates production capacity and marketing efforts to products generating higher contributions.
Example: If Product A contributes ₹70 per unit and Product B contributes ₹40 per unit, the company may increase the sales proportion of Product A to maximize profits.
10. Utilization of Scarce Resources
When resources such as labour hours, machine hours, or raw materials are limited, marginal costing helps determine the best use of these scarce resources. Management calculates contribution per limiting factor and allocates resources to products providing the highest return.
Example: Product A generates a contribution of ₹100 per machine hour, while Product B generates ₹60 per machine hour. The company should allocate more machine hours to Product A to maximize total contribution.
11. Decision Regarding Further Processing
Some products can be sold at an intermediate stage or processed further before sale. Marginal costing helps management determine whether additional processing is profitable by comparing additional revenue with additional costs. Further processing is undertaken only when additional revenue exceeds additional costs.
Example: A product can be sold for ₹500 or processed further and sold for ₹700 by incurring additional costs of ₹120. Since additional revenue of ₹200 exceeds additional cost, further processing is profitable.
12. Expansion or Contraction Decisions
Marginal costing assists management in evaluating proposals for expansion or contraction of operations. Before increasing production capacity or reducing activities, management analyzes the additional contribution and fixed costs involved. This ensures that decisions are financially sound and profitable.
Example: A company plans to expand production by introducing a new machine costing ₹5,00,000. If the additional contribution generated exceeds the additional fixed costs, the expansion proposal should be accepted. Thus, marginal costing supports strategic planning and long-term business growth.
