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Setting of Standards is the starting point of the entire standard costing system. Before production begins, you pre-decide the should-be cost for one unit — how much material, how many labour hours, how much overhead. This pre-decided cost is the standard cost, and it becomes your measuring stick. Every variance you calculate in the rest of this chapter flows from how well (or badly) actual performance matched these standards.

There are four types of standards ICAI wants you to know. Ideal Standard assumes zero wastage, zero idle time, perfect efficiency — sounds great, but it's demotivating because you'll always show an adverse variance. Nobody achieves perfection. Normal Standard (also called Expected or Attainable Standard) is realistic — it builds in normal wastage, average worker efficiency, and routine machine downtime. This is the most important one for your exam; assume Normal Standard unless the question says otherwise. Basic Standard is a historical benchmark set once and rarely changed — used to study long-run trends, not for day-to-day cost control. Current Standard is revised frequently to reflect current conditions, useful when prices are volatile.

Now, how do you actually set a standard? For Standard Material Cost, you nail down two things: (a) Standard quantity — the input quantity needed per unit of output, including normal process loss, and (b) Standard price — expected purchase price including freight and duties, minus trade discounts. For Standard Labour Cost, fix: (a) Standard hours — the time an average-skilled worker takes per unit, including normal idle time, and (b) Standard wage rate — basic pay plus DA and other allowances. For Standard Overhead, compute a Standard Overhead Absorption Rate (OAR) = Budgeted Overhead ÷ Budgeted Activity Level. Critically, always split fixed and variable overheads — treating them as one rate will kill your overhead variance analysis later.

All these elements come together in a Standard Cost Card, a per-unit summary of all cost components. In exam questions, you'll either be given the card and asked to compute variances, or be asked to build the card from scattered data. Master the card, and standard costing becomes mechanical. This topic appears frequently as a 4-mark theory question — 'Distinguish between Ideal and Normal Standards' or 'State factors considered while setting material price standards' — so don't treat it as just an intro.

📊 Worked example

Example 1 — Building a Standard Cost Card

Rajesh & Co. Pvt. Ltd. manufactures Product Alpha. The following data is available for one unit of output:

  • Raw material required (after normal loss): 4 kg; Normal process loss = 20% of input; Standard price = ₹50 per kg
  • Labour: 3 hours per unit; Standard wage rate = ₹60 per hour
  • Variable overhead: ₹25 per labour hour
  • Fixed overhead: Budgeted ₹6,00,000 for budgeted output of 10,000 units

Working:

Step 1 — Standard Material Quantity (grossing up for normal loss):

Normal loss = 20% of input → Output = 80% of input

Standard input = 4 kg ÷ 0.80 = 5 kg per unit

Standard Material Cost = 5 kg × ₹50 = ₹2,50 per unit

Step 2 — Standard Labour Cost:

3 hours × ₹60 = ₹1,80 per unit

Step 3 — Standard Variable Overhead:

3 hours × ₹25 = ₹75 per unit

Step 4 — Standard Fixed Overhead (OAR):

₹6,00,000 ÷ 10,000 units = ₹60 per unit

Standard Cost Card — Product Alpha (per unit)

| Element | ₹ |

|---|---|

| Material (5 kg × ₹50) | 2,50 |

| Labour (3 hrs × ₹60) | 1,80 |

| Variable Overhead (3 hrs × ₹25) | 75 |

| Fixed Overhead | 60 |

| Total Standard Cost | 5,65 |

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Example 2 — Setting Standard Labour Rate

Ms. Iyer's factory employs workers with the following pay structure: Basic wage ₹400/day, DA ₹120/day, PF contribution by employer ₹60/day, normal idle time = 10% of total time. Each worker works 8 hours/day.

Working:

Total daily cost per worker = ₹400 + ₹120 + ₹60 = ₹580/day

Effective working hours per day (excluding normal idle time):

= 8 hours × (1 − 0.10) = 7.2 productive hours

Standard Labour Rate = ₹580 ÷ 7.2 hours = ₹80.56 per hour (rounded to ₹80.55 in exam)

Note: Normal idle time is absorbed into the standard rate — do not deduct it from hours; include it as a cost.

⚠️ Common exam mistakes

  • Confusing Ideal with 'better' standard: Students think Ideal Standard is preferred because it pushes efficiency. Wrong — it demoralises workers by always showing adverse variances. Normal Standard is preferred for control purposes.
  • Forgetting to gross up material quantity for process loss: If output needs 4 kg and loss is 20% of input, students write standard quantity as 4 kg. Correct approach: 4 ÷ 0.80 = 5 kg. Always gross up — the standard must cover the loss too.
  • Using one combined OAR for both fixed and variable overhead: Splitting is not optional. Fixed overhead OAR and variable overhead OAR are calculated and applied separately — mixing them up makes volume variance and expenditure variance calculations impossible.
  • Excluding employer PF/ESI from standard labour rate: Students often take only basic wages. The full employment cost — basic + DA + employer contributions — must be included in the standard rate.
  • Thinking Basic Standard is useful for current period cost control: It isn't. Basic Standard is a long-run historical benchmark, not actionable for this year's budgets. Don't recommend it when a question asks 'which standard is most suitable for cost control'.
📖 Reference: Setting Standards — Institute of Chartered Accountants of India
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