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Managerial Accounting — Chapters M1–M3: Comprehensive Study Notes Study Notes

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📘 Introduction & Purpose of Managerial Accounting

Managerial accounting serves internal users (managers, employees) and focuses on providing information that is relevant, timely, and oriented to the present and future for decision usefulness. Unlike financial accounting, which serves external users and follows GAAP/IFRS and historical reporting, managerial accounting emphasizes planning and control across components of the firm and shorter timeframes (daily/weekly).

🧭 Key Differences: Financial vs. Managerial

Financial accounting: Firm-wide summaries, historical timeframe, rules-based (GAAP/IFRS), audited, focuses on adequacy of disclosures.
Managerial accounting: Component-level detail, future-oriented, non-GAAP, decision-focused, affects manager behavior and internal incentives.

⚖️ Dr. Debit’s Practical Rules (Select)

All costs have to go somewhere — costs are either inventorial (product) or period costs.
You can’t control costs you don’t see — measurement matters.
Decisions rely on quality of information — accuracy and relevance drive good decisions.

🔎 Ethics for Management Accountants

Follow IMA principles: Competence, Confidentiality, Integrity, Credibility. When facing ethical dilemmas, consult a supervisor, advisor, or lawyer and consider stakeholders and firm policy.

💰 Cost Concepts & Classifications

Cost: Sacrifice of resources.
Expenditure: Cash outlay.
Expense: Accounting recognition (matching principle).
Period costs: Expensed in the period incurred (e.g., selling & administrative).
Product costs: Inventoriable; capitalized on balance sheet until sold, then recognized as cost of goods sold.

🏷️ Types of Firms & Cost Treatment

Service firms: Sell time/skill. Almost all costs are period costs and expensed as incurred. Example: Income statement shows Revenue − Expenses = Income.
Merchandising firms: Resell purchased goods. Use the inventory formula:
$\text{Cost of goods available for sale (COGAS)} = \text{Beginning merchandise inventory} + \text{Purchases}$
$\text{Cost of goods sold (COGS)} = \text{COGAS} - \text{Ending merchandise inventory}$

Income statement: $\text{Sales revenue} - \text{COGS} = \text{Gross profit}$ .
Manufacturing firms: Transform raw materials into finished goods. Product costs = DM + DL + MOH where MOH = manufacturing overhead (indirect materials, indirect labor, factory rent, depreciation, utilities).

🧾 Manufacturing Inventory Flow & Key Formulas

Basic manufacturing flow:

Direct materials: $\text{DM BB} + \text{Purchases} = \text{DM available}$ ; $\text{DM used} = \text{DM available} - \text{DM EB}$ .
Work-in-process (WIP): $\text{WIP BB} + \text{DM} + \text{DL} + \text{MOH} = \text{Total manufacturing costs}$ ;
$\text{COGM} = \text{Total manufacturing costs} - \text{WIP EB}$ .
Finished goods (FG): $\text{FG BB} + \text{COGM} = \text{COGAS}$ ;
$\text{COGS} = \text{COGAS} - \text{FG EB}$ .

🔢 Example Calculations (concepts)

Cost per unit (given COGS or total cost): $\text{Cost per unit} = \frac{\text{Total cost}}{\text{Units sold}}$ (e.g., $13.10$ ).
Prime costs = $\text{DM} + \text{DL}$ .
Conversion costs = $\text{DL} + \text{MOH}$ .

These foundational concepts support preparing income statements and schedules of cost of goods manufactured and sold.

🧩 Job Order Costing: Overview & Flow

Job order costing accumulates costs by specific jobs or batches where each job is unique. The cost elements are Direct Materials (DM), Direct Labor (DL), and Manufacturing Overhead (MOH). Costs move: Raw Materials → WIP (by job) → Finished Goods → COGS.

🛠️ Four Core Steps in Job Costing

Accumulate — record DM purchases, labor, and overhead costs.
Assign — trace DM and DL to jobs via job cost sheets; charge indirect costs to MOH.
Allocate — apply MOH to jobs using a predetermined overhead rate (POHR).
Adjust — at period end, reconcile MOH (under- or over-applied) and close to COGS or allocate among WIP/FG/COGS.

🔁 Journal Entries: Typical Examples

Purchase of materials: Dr. Raw Materials; Cr. Accounts Payable.
Use of direct materials: Dr. WIP; Cr. Raw Materials.
Direct labor: Dr. WIP; Cr. Wages Payable.
Recording actual MOH costs: Dr. MOH; Cr. relevant accounts (e.g., Accumulated Depreciation, Utilities Payable).
Applying MOH to jobs: Dr. WIP; Cr. MOH (using POHR).

📐 Predetermined Overhead Rate (POHR)

POHR is set before the period for budgeting and smoothing:
$\text{POHR} = \frac{\text{Estimated MOH for period}}{\text{Estimated allocation base}}$
Common allocation bases: direct labor hours (DLH), direct labor dollars (DL$), or machine-hours (MH).

Example: If Est. MOH = $and Est. DL$

MOH applied to a job = $\text{POHR} \times \text{job's DL$ }$.

🧾 End-of-Period MOH Adjustment

If Actual MOH > Applied MOH → Under-applied (debit balance); typically close by debiting COGS and crediting MOH.
If Actual MOH < Applied MOH → Over-applied; typically reduce COGS.

🧾 Job Cost Sheet & Uses

A job cost sheet records DM, DL, and MOH for a job and shows total and per-unit costs. Uses include controlling costs (budget v. actual), evaluating performance, pricing, and resource allocation.

📊 Examples & Problems (conceptual summary)

In-Shape example: allocate DM and DL to specific jobs (e.g., Job 123, Job 124) and apply MOH using POHR of 0.50 (50% of DL$).
Completion and sale: transfer job costs from WIP to Finished Goods when completed; on sale, record Sales and remove FG to COGS.
Sample problem format: compute POHR, actual MOH, allocated MOH, determine over/under allocation, and prepare closing entry.

🧪 Process Costing: Overview & Flow

Process costing is used for continuous, homogeneous products. Costs are accumulated by process/department (e.g., Mixing, Canning). Each department has its own WIP account and a production cost report at period end. Costs flow: Department 1 WIP → Dept. 2 WIP → … → Finished Goods → COGS.

🔁 Handling Partially Completed Units — Equivalent Units (EU)

To assign costs to partially completed units, compute Equivalent Units (EU):
$\text{EU} = \text{Number of units} \times %\text{complete}$ .

Example: 100 units 30% complete = 30 EU.

🧭 Four-Step Procedure for a Production Cost Report

Summarize the physical flow of units (units in beginning WIP, units started, units completed and transferred out, ending WIP).
Compute equivalent units separately for Direct Materials (DM) and Conversion Costs (CC = DL + MOH).
Compute cost per EU:
$\text{Cost per EU} = \frac{\text{Costs to account for}}{\text{Equivalent units}}$
Assign costs to units completed and to ending WIP.

🔀 Weighted-Average vs. FIFO

Weighted-Average: Combines beginning WIP costs with current period costs and computes cost/EU on a combined basis.
FIFO: Separates costs of beginning WIP (old costs) from current period costs; more precise in tracking prior-period costs.

🧴 XYZ Paint Co. (Weighted-Average Example Summary)

Mixing Department example (weighted-average):

Physical units: WIP BB 20,000 (25% CC), started 92,000, WIP EB 16,000 (30% CC), transferred out 96,000.
Equivalent units (weighted-average): DM = 112,000 EU; CC = 100,800 EU.
Costs: WIP BB DM $16,160, CC$ 8,126; costs added DM $84,640, CC$ 213,634; total costs DM $100,800, CC$ 221,760, total $322,560.
Cost/EU: DM $0.90/EU, CC$ 2.20/EU, Total $3.10/EU.
Costs assigned: Transferred out cost $297,600; WIP EB cost$ 24,960; totals reconcile to $322,560.

🧩 Practical Uses of Production Cost Reports

Production cost reports are used for cost control, performance evaluation, and pricing decisions. They document how much cost is associated with completed units versus units still in process.

✍️ Practice Problem (Too Cute) — Conceptual Steps

Started 20,000 units, ended with 4,000 units 25% complete for CC. Units completed and transferred out = 16,000.
Given costs (e.g., DM $35,200; CC$ 37,400), compute EU for DM and CC, cost/EU, total cost transferred out, and cost of ending WIP using the weighted-average procedure.

These process-costing mechanics ensure accurate unit costing for continuous production environments and facilitate managerial decisions about operations and pricing.

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Managerial Accounting — Chapters M1–M3: Comprehensive Study Notes Summary & Study Notes