Receive a six-roll paper delivery
Illustrative inputs, not verified product specifications or care recommendations.The household question
An open reserve remains when two three-roll packs arrive.

Measurements and assumptions
Before the change
| Unopened packs | 0 |
|---|---|
| Rolls per pack | 3 |
| Open rolls | 1 |
| Roll specification | 30 m |
| Item name | Receive a six-roll paper delivery |
| Storage location | Household supply shelf |
| Minimum stock | 0 |
After the change
| Unopened packs | 2 |
|---|---|
| Rolls per pack | 3 |
| Open rolls | 1 |
| Roll specification | 30 m |
| Item name | Receive a six-roll paper delivery |
| Storage location | Household supply shelf |
| Minimum stock | 0 |
Carry out this task
- Save the Before values on the linked tool.
- Increase sealed packs while retaining the one loose roll.
- Calculate & Save the After values on the same item. Check the ID is retained rather than creating another physical item.
Calculation and observed tool result
Before
0 × 3 + 1 = 1 rollsRecorded quantity: 1 rolls.
After
2 × 3 + 1 = 7 rollsRecorded quantity: 7 rolls.
What the result means
The available count becomes seven rolls after receipt.
Limits of this example
Only physically received packs belong in this total.
A mistake to avoid
Replacing loose stock with the delivery count would lose the existing roll.
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