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What this calculator does
Estimate a conservative first stock quantity while keeping part of the available cash in reserve. Inventory should support a demand test, not become the reason to continue an idea.
How Much Stock Should I Buy First?
Protect cash by keeping the first inventory commitment deliberately small.
Your numbers
Optional cap based on the smallest useful demand test.
Your result
Enter inventory budget and unit cost to estimate a conservative test quantity.
These are estimates based on your numbers. Real costs and results may be different.
What to enter
- Cash available for the inventory test
- Landed variable cost per unit
- Reserve percentage and any maximum test quantity
What to do next
- Order below the calculated maximum when evidence is weak
- Retain cash for defects, returns and improvements
- Reorder from paid demand rather than optimism