Purchasing & Inventory
COGS Calculator
Calculate cogs for hotel and restaurant operations.
Average Inventory Calculator
Use this tool to review average inventory with a consistent period, denominator, and operating rule.
- No login required
- Save in this browser
- Optional account sync
- Built for hotel operators
Formula
How this calculator works
This formula converts source operating values into average inventory for quick review.
Average Inventory = (Beginning Inventory + Ending Inventory) ÷ 2
Context
Why this metric matters
For longer periods, monthly average of multiple stock counts is more stable than start/end average.
Hotel insight
Industry context
- For longer periods, monthly average of multiple stock counts is more stable than start/end average.
- Small changes in denominator rules can move the result, so keep the same reporting basis when comparing periods.
Operational notes
Before you act on the number
- ($50,000 + $40,000) ÷ 2 = $45,000
- Confirm whether internal-use, complimentary, adjustment, or excluded activity should be included before comparing periods.
- Use this result as an operating guide and review it with the supporting business context.