So berechnen Sie Shopping

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Shopping calculators cover discount stacking, sale price calculation, price comparison, cashback earnings, and value-for-money analysis across different products and pack sizes.

Formel

Stacked discounts multiply: 20% then 10% off = (0.8×0.9) = 28% total discount (not 30%)

Schritt-für-Schritt-Anleitung

1Stacked discounts multiply: 20% then 10% off = (0.8×0.9) = 28% total discount (not 30%)
2Unit price: total price / quantity in same units
3Cashback: spend × rate / 100
4VAT-inclusive price: net price × (1 + VAT rate)

Gelöste Beispiele

Eingabe

20% off then 10% loyalty discount on £100

Ergebnis

£100 × 0.8 × 0.9 = £72 (not £70)

Häufig gestellte Fragen

What is Shopping?

Shopping calculators cover discount stacking, sale price calculation, price comparison, cashback earnings, and value-for-money analysis across different products and pack sizes. Use this calculator for accurate, instant results.

How accurate is the Shopping calculator?

The calculator uses the standard published formula for shopping. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Shopping calculator use?

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Shopping calculator use?

The core formula is: Stacked discounts multiply: 20% then 10% off = (0.8×0.9) = 28% total discount (not 30%). Each step in the calculation is shown so you can verify the result manually.