Packing-station supply issues versus actual consumption
Stock delivered to a packing station is not necessarily stock consumed there during the same period. Some can remain at the bench or return to the stockroom. Reconcile those movements before using issue quantities as the purchasing forecast.
Choose a countable supply and one boundary
TS2012 is a precut carton-sealing tape strip listed at 2 × 12 inches and supplied in a 100-pack. Whole unused strips provide a countable unit for the example below. The calculation does not estimate the remaining length of a partly used roll.
Define the station and the start and end of the measurement period. Count opening and closing stock at that same boundary, and record all incoming and outgoing transfers. Convert packs to individual strips consistently before adding the quantities.
| Movement or count | Whole strips |
|---|---|
| Usable stock at the opening count | 20 |
| Stockroom issues during the period | 200 |
| Unused stock returned to the stockroom | 30 |
| Usable stock at the closing count | 40 |
| Quantity consumed within the boundary | 20 + 200 − 30 − 40 = 150 |
Explain the difference from issued quantity
The stockroom issued 200 strips. Net issues after returns were 170. Actual consumption in this fully reconciled example was 150 because usable bench stock increased from twenty to forty strips. Forecasting directly from either 200 or 170 would treat some stock movement as consumption.
Consumption includes material used in accepted packs and material discarded during the process. If that distinction matters, record the discarded quantity separately. For example, fifteen discarded strips would leave 135 used in the accepted work under this example's complete accounting.
Resolve missing movements before naming them consumption
A transfer to another bench belongs in the outgoing record, not in usage at the first station. Unrecorded transfers, count errors or misplaced stock can otherwise appear as consumption. Investigate a reconciliation gap instead of assuming every missing strip closed a carton.
Use consistent rules for unusable stock and preserve any unresolved quantities separately. The simple arithmetic is valid only when the stated boundary and movements describe the real flow.
Use the reconciled rate for replenishment
Connect the measured period with its actual work mix and operating time before projecting future demand. Keep any reserve or case-rounding addition separate from observed consumption. The carton sealing tape guide provides tape specification context; a better demand record does not alter the approved closure pattern or make another tape an interchangeable supply.