A clear reference basket
One selected8m Mouliné at£1.50,one selected Pearl at£2 and one selected Aida cut at£5 total£8.50 merchandise. Those are unlike material types in one purchase ledger,not a complete kit or a common unit-rate ranking. If the current actual tickets differ,enter those confirmed amounts rather than relying on a dated observation.
Exact full credit reaches zero
A confirmed merchandise-only£8.50 credit against£8.50 leaves£0 merchandise payable. In a hypothetical arithmetic test,delivery£4.99 and additional tax£1.25 remain as£6.24 charges. Those test inputs are not claimed craft-store fees. A material credit must not silently remove delivery or add VAT again when the ticket already includes it.
One penny over is unresolved
A£8.51 credit against that base is rejected rather than creating a negative bill. Blank or negative prices,exponent notation,fractions of a penny and values beyond the supported range are also rejected. Quantities must be whole nonnegative retail units. Blank charges remain unknown and prevent a final total.
Use meaningful decimal checks
The tool converts supported GBP entries to integer pence before multiplying and subtracting. Checks include£47.99 ×2 =£95.98 and£0.10 ×3 =£0.30,each allowing an exact full credit to zero. Unit-rate displays are rounded separately;the£0.1875-per-metre Mouliné reference is not rounded to19p before calculating the whole-skein basket.
Keep the purchase calculation bounded
The ledger supports complete offer prices and declared thread-metre references while refusing fabric/thread cross-unit comparisons. It does not reserve stock,verify the Pearl put-up,approve a design or perform a craft test. Actual received labels,local checkout,three approved merchants and independent technical/content review remain pending. No remote order,payment or deployment is performed.
Sources & scope
Checked November 5, 2026. Manufacturer and retailer references support the specific statements. Dated displayed prices are not final checkout quotes, performance rankings or performance testing. This shopping reference does not replace the exact product label or retailer instructions. Current received labels and independent technical/content/commerce review remain pending.
Hobbycraft DMC310 Mouliné8m5643781061 ↗
Hobbycraft DMC310 PearlSize5declared25m6404271008 ↗
Hobbycraft White14count30×46cm6705941000 ↗