A box of 100 tablets was entered as one. How much stock is at risk?

You paid 500 for a box of 100 tablets. Before the first sale, you count all 100 on the shelf. Your point-of-sale system (POS) shows one tablet on hand.

As the buyer, you have two decisions to make. Should you order more because the system says only one tablet is left? And should you report the other 99 as a loss?

Hold the reorder and check the cost entry. You have already counted all 100 tablets, so there is no evidence that stock went missing. What you know is that the POS understates the quantity by 99 tablets. The effect on the reported stock value could be 495 or zero, even with exactly the same quantity error.

First, establish what the stock should be worth

Use the supplier invoice and the labelled pack size. In this example, the POS tracks stock in individual tablets, the purchase price is 500 in local currency, and there have been no sales, returns or transfers since delivery.

• Correct quantity: 1 box × 100 tablets = 100 tablets.
• Correct acquisition cost per tablet: 500 ÷ 100 = 5.
• Correct value of this batch: 100 tablets × 5 = 500.

The 99 tablets missing from the quantity report therefore cost 495. Now check the unit cost the POS actually saved. That one field changes the answer.

Case 1: The POS recorded one tablet at 5

The unit cost is correct, but the quantity is wrong. The POS values this batch at 1 × 5 = 5. You counted stock that cost 500, so the report understates the batch value by 495.

This is the case where both the quantity report and the value report need correction. The 495 is the cost of stock omitted from the report. The tablets themselves are still on the shelf.

Case 2: The POS recorded one tablet at 500

Here, the full box cost was entered as the cost of a single tablet. The POS values the batch at 1 × 500 = 500. The batch total agrees with the invoice, even though the system shows only one saleable tablet and assigns the whole box cost to it.

This is the easier mistake to overlook because the invoice total matches. It is also where a quantity-only correction can make things worse. If you change the balance to 100 tablets but leave the unit cost at 500, the batch will appear to be worth 50,000. The correct result is 100 tablets at 5 each.

What the buyer should do before reordering

Check the unit label first. If the report says one box and the box contains 100 tablets, the quantity may already be correct. If it explicitly says one tablet, open the original receipt and compare three entries with the invoice: pack size, quantity received and cost per stock unit.

Use your system’s approved correction process and keep the original invoice reference. For this delivery, with no later movements, you should be able to read back one complete statement: “We received 100 tablets, they cost 5 each, and the batch is worth 500.” If sales have already occurred, trace those movements before changing today’s balance.

The buying decision: Base the next order on the verified physical balance of 100 and your usual reorder level. A readout of one tablet is a reason to investigate the receipt before it becomes a reason to buy another box.