Comparing unit prices without buying unnecessary quantities
Compare the cost per useful unit and the quantity you will actually consume. A lower unit price is wasted if the extra product expires.

What to check
- Pack sizes
- usable quantity and total basket cost
Record the actual amounts and dates, compare the options and write down the next check before committing.
A decision to avoid
Buying more than you can use to claim a theoretical saving.

Your next action
- Compare the cost per useful unit and the quantity you will actually consume. A lower unit price is wasted if the extra product expires.
- Record the actual amounts and dates, compare the options and write down the next check before committing.
- Keep the dated document or reference that supports the answer.
Questions about this decision
What should I check first?
Compare the cost per useful unit and the quantity you will actually consume. A lower unit price is wasted if the extra product expires.
Which information do I need for this decision?
Pack sizes, usable quantity and total basket cost.
Which mistake should I avoid here?
Buying more than you can use to claim a theoretical saving.
How do I check pack sizes?
Locate the actual dated record for Pack sizes. Compare it with the other records in this checklist; ask the organisation responsible for any unexplained difference.
How do I check usable quantity and total basket cost?
Locate the actual dated record for usable quantity and total basket cost. Compare it with the other records in this checklist; ask the organisation responsible for any unexplained difference.
What should I do if a required detail is missing?
Mark it as unresolved. Ask for that precise detail before choosing; do not substitute an advertised example for your own document.
What is the next practical step?
Record the actual amounts and dates, compare the options and write down the next check before committing.
How can I verify the explanation?
Use the documents listed above. Check quoted amounts and dates in the original record; use the official reference links for the organisation’s guidance.
