1. Calculate the product of costs for items in a specific warehouse
| SKU | Warehouse | On Hand | Reorder Point | Cost |
| SKU001 | Boston | 150 | 50 | 2.5 |
| SKU001 | Chicago | 200 | 50 | 2.5 |
| SKU002 | Boston | 30 | 40 | 1.5 |
| SKU002 | Chicago | 75 | 40 | 1.5 |
| SKU003 | Boston | 200 | 100 | 3 |
| SKU003 | Chicago | 120 | 100 | 3 |
| SKU004 | Boston | 25 | 50 | 0.99 |
| SKU004 | Chicago | 15 | 50 | 0.99 |
=DPRODUCT(A1:E9, "Cost", A11:B12)Result: 11.1375
DPRODUCT filters the inventory to rows where Warehouse='Boston' and multiplies their costs: 2.50 × 1.50 × 3.00 × 0.99 = 11.1375. This pattern is useful when costs represent factors that compound together, such as successive discount multipliers.