Summary of "Cost Accounting Information for Decision Making Part 1"

Cost Accounting Information for Decision Making (Part 1)

Overview / Purpose

Introduces cost accounting and how it differs from (and overlaps) financial and managerial accounting.
Explains how cost accounting provides internal, decision-relevant information managers use to create value across the firm’s value chain.
Topics covered: the value chain, how managers use accounting information, accounting systems for managers, and using cost data for decisions and control.

Value chain (what activities create customer value)

The value chain is the sequence of activities that transforms raw materials into products customers value (value is customer-defined). Cost accounting supports managers across all stages by supplying cost and performance data.

Key components:

Research & development — identify product needs, materials, quality requirements
Design — prototype and cost the components
Purchasing — select suppliers, secure price/reliability
Production — manufacturing, just-in-time ordering
Marketing — promote and sell
Distribution / supply chain — shipping; timely delivery matters to customers
Customer service — feedback, problem resolution, maintaining relationships

Cost accounting vs. financial accounting

Users
- Financial accounting → external users (investors, banks, tax authorities)
- Cost accounting → internal users (managers, employees, owners)
Rules & orientation
- Financial accounting is rules-driven (GAAP / IFRS), retrospective, and publicly reported
- Cost accounting is flexible, forward-looking (forecasting and timely info), and not constrained by GAAP; much detail is internal/confidential
Purpose
- Financial accounting ensures market efficiency and comparability
- Cost accounting supplies actionable information to support managerial decisions and control

Users of cost information

Multiple internal users at different levels: frontline workers, lower-level managers, top management/CEOs/owners
Cost information is tailored to the decision scope and level of the user
Data quality is critical — “garbage in, garbage out.”

“Garbage in, garbage out.”

Decision-making: relevant costs and cost drivers

Definitions

Cost driver: the factor that causes a cost to change (e.g., number of stores drives rent/insurance; number of cookies drives raw materials and labor)
Differential (relevant) costs/revenues: costs or revenues that change between alternatives; these are what matter for decisions

Step-by-step method to evaluate an alternative

Define the status quo (current situation) and the alternative (what would change).
List all revenues and costs under each option (explicit or computed).
Identify cost drivers and determine which costs are differential (change) versus which are unaffected (sunk or unchanged costs).
Compute differential revenue and differential costs.
Calculate differential operating profit (differential revenue − differential costs).
Consider non-financial factors (brand perception, product spoilage, customer reaction, distribution issues).
Make a decision combining financial and non-financial considerations.

Example (from the video)

Status quo profit: $850
Alternative (selling to wholesalers/retailers):
- Differential revenue ≈ $2,205
- Differential costs ≈ $900
- Differential operating profit increases ≈ $405
Rent stayed the same, so it was not a differential cost in this decision.

Evaluation & control (performance measurement)

Responsibility centers

Organizations divide operations into responsibility centers (e.g., retail vs. wholesale) so managers are held accountable only for revenues/costs they control
Indirect/general overhead costs should be segregated and not unfairly assigned to a center manager who cannot control them

Budgeting and variance analysis

Prepare budgets at the beginning of the period for each responsibility center
At period end, compare actuals to budgeted amounts and compute variances (budget vs. actual)
Interpret variances:
- For costs: actual < budget is favorable (cost saving)
- For revenues: actual < budget is unfavorable
Investigate material or unusual variances (e.g., higher-than-expected spending on eggs/chocolate/nuts) to find causes and take corrective actions

Feedback loop

Use variance information to “close the loop”: evaluate past decisions, adjust plans, and improve future performance

Other points / practical lessons

Cost accounting information is often more detailed and confidential than external financial reports
Managers use cost data both for making choices (what to do) and for evaluating results (how well decisions were executed)
Non-financial and qualitative factors are important and must be weighed alongside numeric analysis
A subsequent session will examine trends in cost accounting and deeper links between cost accounting and the value chain