Examples
Examples
Try the starting example
- Cohorts [issue ISO date,issued count,returned by report date count]; enter JSON
- [["2026-10-01",100,80],["2026-10-10",50,30]]
- Report date (ISO date)
- 2026-10-20
- Overall return fraction
- 0.733333
- Outstanding [cohort,quantity,age days] (JSON)
- [[1,20,19],[2,20,10]]
- Outstanding containers (count)
- 40
Try another scenario
- Cohorts [issue ISO date,issued count,returned by report date count]; enter JSON
- [["2026-10-01",120,100],["2026-10-15",60,40]]
- Report date (ISO date)
- 2026-10-22
- Overall return fraction
- 0.777778
- Outstanding [cohort,quantity,age days] (JSON)
- [[1,20,21],[2,20,7]]
- Outstanding containers (count)
- 40
Calculation method
Calculation method
Overall return fraction
Total returned/total issued.
Outstanding [cohort,quantity,age days] (JSON)
Issued−returned per cohort; age=report−issue in whole calendar days.
Outstanding containers (count)
Total issued−total returned.
Symbols and units
- a
- Cohorts [issue ISO date,issued count,returned by report date count]; enter JSON
- b
- Report date (ISO 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
- Cohort report as of a supplied date; returns cannot precede issue or exceed issued quantity. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. Valid issue dates<=report date; 0<=returned<=issued integers; total issued>0.
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.