COSTCO WHOLESALE DERBY

How the 158p breaks down

Area average margin is 4.2p — this station runs 17.5p above.

What you're actually paying for

Of every litre of Standard Unleaded (E10) at 147.9p, 73.0p (≈ 49%) goes to the wholesale cost of the fuel itself, 53.0p (≈ 36%) is fuel duty paid to HMRC, 0.3p (≈ 0%) is VAT, and 21.7p (≈ 15%) is what the forecourt keeps to cover rent, staff, card fees and profit.

This station's margin of 21.7p is 17.5p above the five-mile average — notably high (neighbours average 4.2p). On our 0–10 fairness scale, 1.0/10 (high).

Wholesale and duty numbers come from DESNZ daily bulletins; VAT is the statutory 20% applied to the pump price; area average is computed across every reporting station within five miles.

Seven days of E10