Margin
Your best sellers are not your best earners.
A top seller is not always a top earner. See revenue, cost, gross profit, and margin by item using the cost captured when the goods actually left.

The result
You can see what actually earns, not just what sells. Anything missing a trustworthy cost is called out instead of guessed.
Where this helps
Anyone deciding what to reorder, what to reprice and what to stop stocking — which is to say, anyone who buys to sell.
What you can stop doing
Revenue, and a feeling about cost
Sales totals are easy to find. The cost behind them is what gets guessed, averaged, or replaced with today’s supplier price. Tare7 keeps the cost from the moment each item sold, so last month does not change when next month’s price rises.
Why it matters
Your busiest product may be tying up cash and shelf space while a quieter item earns far more on every sale.
A worked example
Watch the loose ends disappear, step by step.
A shop's trading week. The register wrote release rows all week, each carrying the cost the goods were actually landed at.
- 1
Cost is captured, not looked up
When two bags of coffee left the shelf, the release row recorded $5.60 each — the landed cost at that moment. When the supplier raises the price next Tuesday, that row does not move.
- 2
The week totals up
The week produced $8,420 in revenue, $4,691 in goods cost, and $3,729 in gross profit—a 44.3% margin built from recorded sales and costs.
- 3
Then it splits by item
House blend: $3,220.00 revenue against $1,610.00 cost — $1,610.00 of profit at 50.0%. Ceramic mugs: $1,980.00 against $1,287.00 — $693.00 at 35.0%. Pour-over cones: $1,560.00 against $1,092.00 — $468.00 at 30.0%.
- 4
The ranking is not the till's ranking
The pour-over cones sell well but earn the least per dollar. Coffee earns more than twice their profit without twice the revenue. Sales totals alone would hide that decision.
- 5
Missing cost is declared, never assumed
A line whose cost was never captured is not counted as free stock. It is excluded from revenue, COGS and the per-item table, and the report says how much revenue that was.
- 6
An estimate can be asked for, and is labeled
You can opt into a basis that falls back to the item's current cost. Every row it touches is marked as an estimate, so an indicative number can never be mistaken for an accounting one.
You can see what actually earns, not just what sells. Anything missing a trustworthy cost is called out instead of guessed.
In the app
What you will actually tap, scan, and see.
Revenue
$8,420.00
COGS
$4,691.00
Gross profit
$3,729.00
Margin
44.3%
RT-CFE-250
House blend 250g
$1,610.00
revenue $3,220.00 · COGS $1,610.00 · 50.0% margin
RT-MUG
Ceramic mug
$693.00
revenue $1,980.00 · COGS $1,287.00 · 35.0% margin
RT-CONE
Pour-over cone
$468.00
revenue $1,560.00 · COGS $1,092.00 · 30.0% margin
Cost is stamped on the ledger row when the goods left, so a later price change cannot rewrite last month’s margin. Sale lines with no captured cost are excluded and the report says how much revenue that was.
- RECEIVERT-CFE-250+96 ea
House blend 250g
FRONT · PO-0844 · unit 5.32 + freight 0.28 = 5.60
- RELEASERT-CFE-250−2 ea
House blend 250g
FRONT · Counter sale · cost captured at 5.60
- RELEASERT-MUG−1 ea
Ceramic mug
FRONT · Counter sale · cost captured at 6.50
What it means for your day
The same tool solves a different headache in each business.
Retail store
Per-item gross profit is the reorder decision. It is also the repricing decision, and the one about which supplier's line is worth the shelf.
How Tare7 fits this business
Food truck / market stall
What the day actually made, not what the cash box holds. Recipe items roll their component costs up, so the burger's margin is the sum of its parts.
How Tare7 fits this business
Plumber / painter / HVAC
Materials released to a job carry their landed cost, so job margin is known when the van pulls away rather than reconstructed from receipts.
How Tare7 fits this business
Warehouse
Landed cost from receiving flows straight through to the margin report, so freight is inside the figure rather than a separate line nobody attributes.
How Tare7 fits this business
Before you rely on it
What this feature does not try to do.
If one of these limits matters to your business, it is better to know before you move the work—not after.
- Cost is only captured on outbound rows for sales made after the migration that introduced cost capture, and sales shipped through the older sales-order path still carry none. Those lines are excluded and disclosed rather than counted as free.
- This is gross margin: revenue less captured cost of goods. It is not net profit — rent, wages, fuel, fees and every other overhead sit outside it.
- Tare7 reports from the cost captured as goods moved. It does not offer LIFO, standard-cost, or periodic revaluation accounting.
- The estimated basis is opt-in and falls back to the item's current cost. Every row it touches is labeled as an estimate.
- Figures are in your workspace's single currency. There is no multi-currency conversion or rate history.
Margin
Know what earns its place on the shelf—not just what moves fastest.
Know your margin is included from Mobile at $19/month. Change plan whenever you like.