Examples
Examples
Try the starting example
- Items: name, category, replacement value $, purchase date
- Laptop,Electronics,1000,2025-10-20 Chair,Furniture,200,2026-10-01
- Inventory as-of date
- 2026-10-20
- Total entered replacement value ($)
- $1,200.00
- Values by category ($)
- Electronics: 1000; Furniture: 200
- Oldest purchase age (days)
- 365
- Item records
- 2
Try another scenario
- Items: name, category, replacement value $, purchase date
- Laptop,Electronics,1000,2025-10-20 Chair,Furniture,200,2026-10-01
- Inventory as-of date
- 2026-10-21
- Total entered replacement value ($)
- $1,200.00
- Values by category ($)
- Electronics: 1000; Furniture: 200
- Oldest purchase age (days)
- 366
- Item records
- 2
Calculation method
Calculation method
Total entered replacement value ($)
Sum supplied current replacement values without inferred depreciation.
Values by category ($)
Group supplied values by exact category label.
Oldest purchase age (days)
As-of date minus earliest entered purchase date.
Item records
Count unique item records; quantities must already be reflected in each value.
Symbols and units
- a
- Items: name, category, replacement value $, purchase date
- b
- Inventory as-of date
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- An inventory tally from entered values and dates. It does not appraise property, infer depreciation, determine insured value or assess policy coverage.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
OpenStax: arithmetic and geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.