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How to Calculate Price Comparison

What is Price Comparison?

A price comparison calculator finds the best value by computing price per unit across different pack sizes. Larger packs are not always cheaper — always check the unit price.

Formula

Unit price = Total price / Quantity | Savings % = ((Original − Discounted) / Original) × 100

Step-by-Step Guide

  1. 1Price per unit = Total price / Quantity
  2. 2Compare all options on same per-unit basis
  3. 3Only bulk buy perishables if you will use them before expiry
  4. 4Factor in quality differences if relevant

Worked Examples

Input
250g for £2.50 vs 750g for £6.75
Result
Per 100g: 250g = £1.00; 750g = £0.90 — 750g saves 10%

Frequently Asked Questions

What is Price Comparison?

A price comparison calculator finds the best value by computing price per unit across different pack sizes. Larger packs are not always cheaper — always check the unit price

How accurate is the Price Comparison calculator?

The calculator uses the standard published formula for price comparison. 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 Price Comparison calculator use?

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

What formula does the Price Comparison calculator use?

The core formula is: Price per unit = Total price / Quantity. Each step in the calculation is shown so you can verify the result manually.

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