
Maximize margin when purchasing in volume. Learn lot tracking, average cost calculations, and bulk SKU entry shortcuts.
Start Using SpreadsheetBulk buying is a profit margin amplifier for resellers. When you purchase items with a single-piece cost of $30 at a bulk average of $22 for 10 pieces, the per-item gross profit margin directly increases by 26%.
Assign a unique Lot ID to each bulk purchase (e.g., LOT-2026-05-A). Use the AVERAGEIFS function to calculate weighted average cost by Lot ID.
| Lot ID | Qty | Total Cost | Avg Cost | Status |
|---|---|---|---|---|
| LOT-2026-05-A | 12 | $264 | $22.00 | In Transit |
| LOT-2026-05-B | 8 | $168 | $21.00 | Received |
| LOT-2026-04-C | 15 | $375 | $25.00 | 90% Sold |
The biggest risk of bulk buying is capital freeze. Add a Cash Tied column to calculate funds occupied by inventory in real time, set a cap (e.g., 60% of monthly revenue), and pause procurement when approaching the limit until payments come in.
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