The Flow of Total Manufacturing Costs Through Inventory Accts:
Materials inventory:Debit Beginning Balance Ending Balance, Purchases Credit:direct and indirect materials
Wages Payable: Credit Direct and Indirect Labor
Work in process Inventory:Debit Beginning Balance,Direct materials,Direct Labor,Applied Overhead,ending balance Credit:Cost of goods manufactured
Finished Goods inventory: Debit beginning balance, Cost of goods manufactured Ending Balance, Credit Cost of goods sold
Manufacturing Overhead:Debit Indirect materials:Indirect labor depreciation utilities,Insurance,Taxes,etc credit applied overhead
Product Cost flows:Direct materials,work in process inventory, finished goods inventory,cost of goods sold
Materials Inventory
Cost of materials purchased but not yet used
Work in Process Inventory
Cost of units started but not yet completed.
Finished Goods Inventory
Cost of units completed but not yet sold.
Cost management/Value chain
getting raw materials → research and development → product design_> production → marketing → distribution → customer service
Managerial information
Costs
Product Costs: Costs directly tied to production (e.g., direct materials, direct labor, manufacturing overhead). These are capitalized as inventory until the product is sold.
Period Costs: Costs not related to production (e.g., selling & administrative expenses). These are expensed in the period incurred.
Product Costs: Incurred inside the factory (e.g., raw materials, factory labor, factory utilities).
Period Costs: Incurred outside the factory (e.g., office rent, marketing expenses, executive salaries).
Variable Costs: Change in direct proportion to production levels (e.g., raw materials, direct labor).
Fixed Costs: Do not change regardless of production levels (e.g., rent, insurance).
Mixed Costs: Contain both fixed and variable components (e.g., utility bills).
Debits (Increases): Raw material purchases.
Credits (Decreases): Raw materials used in production (moved to Work in Process).
Debits (Increases):
Direct materials used (from Raw Materials Inventory).
Direct labor incurred.
Applied manufacturing overhead.
Credits (Decreases): When products are completed (moved to Finished Goods Inventory).
Debits (Increases): Completed goods transferred from WIP.
Credits (Decreases): When products are sold (moved to Cost of Goods Sold).
Debits (Increases): When finished goods are sold.
Credits (Decreases): If products are returned or written off.
Direct Costs: Directly traceable to a specific product (e.g., direct materials, direct labor).
Indirect Costs: Cannot be traced directly to a product (e.g., factory utilities, supervisor salaries).
Job Order Costing: Used for unique/custom products (e.g., custom furniture, construction projects).
Process Costing: Used for mass production (e.g., beverages, cereals).
Hybrid Costing: A mix of job order and process costing (e.g., clothing manufacturing).
Variable Costs: Increase with production.
Fixed Costs: Remain constant.
Mixed Costs: Have both variable and fixed components.
Issues: Misclassification, inaccurate tracking, missing data.
Impact: Can lead to incorrect cost calculations, poor decision-making.
Raw Materials Inventory: Unused materials.
Work in Process (WIP) Inventory: Partially completed products.
Finished Goods Inventory: Completed products ready for sale.
Direct Materials: Raw materials that can be directly traced to a product (e.g., wood for furniture).
Direct Labor: Wages paid to workers directly involved in production (e.g., machine operators).
Definition: Indirect costs related to production (e.g., utilities, depreciation, factory supervisor salaries).
Allocation: Applied to WIP inventory based on a predetermined overhead rate.
COGS = Beginning Finished Goods Inventory + Cost of Goods Manufactured - Ending Finished Goods Inventory
Direct Materials Used
Direct Labor
Applied Manufacturing Overhead
Changes in Work in Process Inventory
Purpose: Helps internal managers make strategic decisions.
Focus: Future-oriented, detailed, not bound by GAAP.
Product Costs: Related to manufacturing (recorded as inventory).
Period Costs: Related to selling/admin expenses (expensed immediately).
Fixed costs per unit decrease because total fixed costs are spread over more units.
Direct materials (e.g., wood for furniture).
Direct materials used, direct labor, applied overhead, changes in WIP inventory.
Raw Materials Inventory → 2. Work in Process Inventory → 3. Finished Goods Inventory → 4. Cost of Goods Sold
Direct labor (since it’s a direct cost, not overhead).
COGS = Beginning Finished Goods Inventory + Cost of Goods Manufactured - Ending Finished Goods Inventory
Raw Materials Inventory
Work in Process (WIP) Inventory
Finished Goods Inventory
To provide internal managers with relevant data for planning and decision-making.
Direct Materials: Traceable to a product (e.g., wood for a table).
Indirect Materials: Used in production but not directly traceable (e.g., glue, nails).
Focuses on internal users, future-oriented, not GAAP regulated, detailed reporting.
Variable Costs: Change with production.
Fixed Costs: Stay constant.
Mixed Costs: Have both components.
Job Order Costing: Custom products.
Process Costing: Mass production.
Hybrid: Combination of both.
Errors in data tracking → Inaccurate costs → Poor decision-making.
Direct Labor: Workers directly making the product.
Manufacturing Overhead: Indirect costs related to production (e.g., factory utilities).