Cost Accounting and Budgeting Questions for SSC CGL

Classification of Costs

Costs are classified in multiple ways depending on the purpose of analysis. The most important classifications for SSC CGL are: by nature (material, labour, overhead), by behaviour (fixed, variable, semi-variable), by function (production, admin, selling), and by traceability (direct, indirect). Direct costs can be traced to a specific product or job. Indirect costs (overheads) cannot be directly traced and must be allocated or apportioned.

• Fixed Cost: stays constant regardless of output level — e.g., factory rent
• Variable Cost: changes proportionally with output — e.g., raw material
• Semi-variable Cost: has both fixed and variable parts — e.g., electricity bill
• Direct Cost = Prime Cost elements (Direct Material + Direct Labour + Direct Expenses)
• Indirect Cost = Overheads (Factory, Office, Selling and Distribution)
• Sunk Cost: already incurred, irrelevant to future decisions

Marginal Costing and Break-Even Analysis

Marginal costing treats only variable costs as product costs; fixed costs are charged fully to the period. The key concept is Contribution, which is the amount remaining after variable costs are recovered from sales. This contribution first covers fixed costs and then generates profit. Break-Even Point (BEP) is where total revenue equals total cost — neither profit nor loss.

• Contribution = Sales minus Variable Cost (also = Fixed Cost + Profit)
• P/V Ratio (Profit Volume Ratio) = Contribution divided by Sales, expressed as percentage
• Higher P/V Ratio means more profit per rupee of sales
• BEP in units = Fixed Cost divided by Contribution per unit
• BEP in rupees = Fixed Cost divided by P/V Ratio
• Margin of Safety = Actual Sales minus BEP Sales (shows how much sales can fall before loss)

Types of Budgets

A budget is a quantitative plan expressed in monetary terms for a future period. Budgets are tools for planning and control. SSC CGL tests definitions and features of various budget types. The Master Budget consolidates all functional budgets. The key budget that limits all others is the Principal Budget Factor (also called Key Factor or Limiting Factor) — typically sales, material, or labour.

• Fixed Budget: prepared for one level of activity; does not change with actual output
• Flexible Budget: prepared for multiple activity levels; adjusts with actual output — more useful for control
• Cash Budget: shows expected cash inflows and outflows for future periods
• Capital Budget: deals with long-term investment in fixed assets
• Zero Based Budgeting (ZBB): every expense must be justified fresh each period — no automatic carryover
• Performance Budget: links financial inputs to measurable outcomes — used in government

Variance Analysis

Variance is the difference between standard (planned) cost or revenue and actual cost or revenue. Favourable variance means actual cost is less than standard (good news). Adverse/Unfavourable variance means actual cost is more than standard (bad news). SSC CGL most frequently asks about Material and Labour variances.

• Material Cost Variance = Standard Cost of Actual Output minus Actual Cost
• Material Price Variance = Actual Quantity x (Standard Price minus Actual Price)
• Material Usage Variance = Standard Price x (Standard Quantity minus Actual Quantity)
• Labour Rate Variance = Actual Hours x (Standard Rate minus Actual Rate)
• Labour Efficiency Variance = Standard Rate x (Standard Hours minus Actual Hours)
• MCV = MPV + MUV; LCV = LRV + LEV (additive relationship always holds)

• Confusing Cost of Production with Cost of Sales — selling overheads are added only at the Cost of Sales stage, not before.
• In BEP formula using Total Cost instead of Fixed Cost only — remember variable costs are already covered by contribution.
• Forgetting to adjust for opening and closing stock when calculating COGS — a very common trap in cost sheet questions.
• Mixing up Favourable and Adverse variance signs — if actual cost is MORE than standard, it is Adverse (A), not Favourable.
• Treating Fixed Budget and Flexible Budget as the same — Fixed Budget is static; Flexible Budget changes with activity levels, making it better for performance evaluation.

• Cost Sheet order: PRIME comes first (Direct M + L + E), then WORKS (add factory OH), then PRODUCTION (add office OH), then SALES (add selling OH). Remember: People Work Productively and Sell — PWPS.
• Contribution = Sales minus Variable. Think: after Variable eats its share, what is LEFT (Contributed) for fixed costs and profit.
• For variance: SF minus AF = Variance. If Standard is Favourable (Standard better than Actual), it is F; if Actual is worse (more cost), it is A. Use the phrase Standard Favours, Actual Aches.
• ZBB = Zero Base = Start from ZERO every year. Like wiping a slate clean before writing — no assumptions carried forward.

• Cost sheet questions are the most direct — memorise the exact sequence Prime Cost, Works Cost, Cost of Production, Cost of Sales. SSC often gives partial data and asks you to find one missing component.
• BEP and P/V Ratio together form a popular question pair — if P/V Ratio and Fixed Cost are given, BEP in rupees is a one-step calculation. Practice these for speed.
• Budget type definitions (ZBB, Flexible, Performance) appear as one-liner MCQs — focus on the unique feature of each type, not elaborate descriptions.
• Variance analysis questions at SSC CGL level are usually limited to Material and Labour variances — master those two fully before studying sales or overhead variances.
• Expect at least one question distinguishing Marginal Costing from Absorption Costing — key difference is treatment of Fixed Overhead (period cost vs product cost).