How to compare unit prices from receipts

A receipt line total is the amount for the purchased line. To compare packs, first confirm exactly what the line contains and whether its price includes tax or a discount.

1. Read the quantity and pack size

A line for two 500 ml bottles contains 1,000 ml. If the line total is ₹80, the calculated price is ₹8 per 100 ml. This is an arithmetic example, not an observed BillzWise price. If the receipt merely says “bottle,” its volume is unknown and the per-ml calculation should wait.

2. Check what price the receipt reports

A menu rate, a line total and the final paid amount can differ. A discount may apply to one item or the whole bill. Tax may be included in the listed item price or added later. Compare only prices with a matching basis, or describe the difference explicitly.

3. Match the actual product or serving

Different sizes, brands, flavours and restaurant servings should not be merged because their short receipt labels look similar. A “coffee” without preparation or serving detail is not a reliable match to another coffee. A dated receipt can still explain a historical purchase; it cannot establish today's offer.

Browse reviewed receipt observations · See publication rules