GROSS. — free commercial calculators for UK FMCG brand teams

The Listing

Model the range review before the buyer does. A week-by-week listing projection with a full promo calendar: volume, GSV, promo funding, NSV and gross margin across the year.

Model the range review before the buyer does. Week by week, with a full promo calendar behind the annual GSV-to-net plan.

The workings

A listing is a year of maths wearing a handshake. Stores, rate of sale, weeks — that is your base volume. The promo calendar sits on top: each promo has a mechanic, a start week, a length, an uplift and a funding flag, and the weekly projection reprices every week accordingly. GSV at full list, funding off invoice, NSV, then gross margin after landed cost.

Customer investment — gate fees, marketing support, whatever the buyer called it in the email — is fixed cash, so it lives below gross margin and gets paid in quarterly instalments. The year-by-month table shows the plan on the 4-4-5 calendar, which is the shape your buyer's finance team sees it in. If the monthly line goes red in M1, that is a conversation worth having before the launch, not after.

Rate of sale is where listings die. Model the case where it lands 20% light before you sign anything — this page does it for you at the bottom of the receipt.

The other calculators

• Home — Free commercial calculators for UK FMCG brand teams. Retailer margins, gross-to-net, trade spend payback, supp
• The Shelf — Your range, defined once. Enter each product’s cost price, RSP, units per case and rate of sale — every calcul
• The P&L — See what the retailer really makes on you. Reads top-down: shelf price, VAT, who takes what, and what you actu
• The Waterfall — Every deduction between the shelf price and your bank. Gross to net net, with promo funding, back margin and o
• The Floor — The lowest cost price, or the RRP, that still clears your target margin. Solved backwards from the number you
• The Payback — How much incremental volume a promo needs to pay itself back. Break-even in cases, and the uplift that implies
• The Stock Answer — What to order, and when, before you run out. A weekly supply plan that follows your promo calendar, in whole c
• The Amazon Cut — What FBA takes before you see a penny. Every fee per unit, plus a full-year GSV-to-net P&L by cases sold.
• The TikTok Cut — What TikTok Shop takes on every sale. Every fee per unit, plus a full-year GSV-to-net P&L by cases sold.
• The Line-Up — The same product across grocery, Amazon and TikTok, side by side. The biggest channel is rarely the one that p
• The Range — The whole portfolio on one till roll. Blended margin, the SKU that carries the range, and the full-year plan.
• The Wait — Margin is an opinion; cash is a fact. When the money actually moves — and the gap your bank account has to sur
• The Ledger — One email a month on the commercial maths of UK FMCG. No selling. The archive lives here.
• The Ledger No. 001 — Your margin is your insurance. The minimum margin that survives a halved rate of sale, worked in full.
• The Guides — The long reads behind the calculators: retailer margin, gross-to-net, FBA fees and margin benchmarks, written
• How retailer margin actually works — Front margin, back margin, margin vs mark-up and the wholesaler layer — with the arithmetic shown.
• Gross-to-net: where your revenue goes — GSV, NSV, promo funding and back margin — the waterfall between invoice and bank, and what a healthy one looks
• Amazon FBA fees in the UK — Referral, fulfilment, storage and the plan, added up honestly — plus the break-even price nobody checks.
• FMCG margin benchmarks — Indicative UK brand gross-margin ranges by category, measured on the right base and honest about being ranges.
• Payment terms in UK grocery — Sixty days is not a detail — it is working capital, and it is yours. The debtor-day maths, the shelf-fill trap
• What a promotion actually costs — Funding off invoice, the uplift with the widest error bars in the building, and the payback test nobody runs.
• The Rate Card — Every default in GROSS., what it is, when it was checked and where it comes from. The maths is only as good as

Free, no sign-up. The maths is checked; the defaults are dated and sourced on The Rate Card. VAT number: not applicable. This is a website.