Gross Profit Calculator

Gross profit is revenue minus cost of goods sold (COGS) — the direct cost of what you sold. It is the first profitability checkpoint in an income statement before rent, marketing, and admin.

Gross margin expresses gross profit as a percentage of revenue. It shows whether pricing and sourcing leave enough room to pay the rest of the business.

Gross profit = revenue − COGS. Gross margin = gross profit ÷ revenue. It shows whether direct economics work before overheads.

COGS definition varies — product, manufacturing, direct labour, inbound freight often included.

Next step: operating margin calculator and net profit calculator.

Gross profit = £50,000 − £32,000 = £18,000. Gross margin = £18,000 ÷ £50,000 = 36%.

Markup on COGS = £18,000 ÷ £32,000 = 56.25%. That 56% markup on cost corresponds to 36% margin on revenue — the same relationship as unit-level pricing maths, scaled up.

If COGS rises to £35,000 with revenue flat, gross profit falls to £15,000 and margin drops to 30%. Fixed costs must be covered from a smaller pool.

Gross profit £48,000, gross margin 40%.

If COGS rises to £84,000 without price change, gross profit £36,000 — margin 30%.

Raising price 5% with stable COGS lifts margin — test volume impact separately.

Include direct materials, direct labour, manufacturing costs, and purchase cost of goods resold. Do not include marketing, rent, or management salaries — those sit below gross profit.

Consistent COGS classification makes gross margin comparable month to month.

Gross profit = revenue − COGS. Gross margin % = gross profit ÷ revenue × 100.

Service firms may treat direct delivery cost as COGS.

Inventory methods (FIFO, etc.) affect COGS timing.

Supplier renegotiation and competitor price wars hit gross first — if gross margin cannot hold, operating cuts rarely fix structural underpricing.

New product launch viability should pass a gross margin test before marketing scale — weak gross at launch rarely fixes itself at volume.

Before adding delivery headcount, confirm gross profit per order or unit covers the incremental direct cost of serving more customers.

Supplier terms — longer payment days help cash; lower unit cost helps gross margin directly.

Pricing and discount discipline — net price after promotions must still cover COGS with acceptable margin.

Waste and returns reduction lowers effective COGS without changing list price.

Product design for cheaper fulfilment — packaging, weight, and assembly time belong in COGS conversations.

Mix shift toward high gross-margin SKUs improves blended gross even when total unit volume is flat.

A £2 per-unit COGS reduction on 10,000 units adds £20,000 gross profit at unchanged price — often easier than finding £20,000 of new revenue at thin margin.

When customers demand 5% price cuts, model gross profit £ impact before accepting — on 40% gross margin, 5% price cut costs more than 5% of revenue in profit terms.

Service firms should agree what counts as direct delivery cost in COGS vs opex — inconsistent classification breaks year-on-year gross margin comparison.

Moving warehouse rent between COGS and opex to hit a gross target — auditors and buyers normalize; plan on consistent policy.

Using standard cost while actual waste and scrap run higher — update standards quarterly if variance is persistent.

Ignoring customer returns in COGS timing — net revenue and net COGS must match the same return policy.

Run gross margin on new SKUs before launch marketing spend — weak gross rarely fixes at scale.

Negotiate supplier cost against gross target, not only volume discounts — £1 off COGS at 10k units is £10k gross.

If gross is stable but net suffers, move to net profit calculator — the issue is below gross.

On £400,000 revenue, improving gross margin from 42% to 45% adds £12,000 gross profit without a single new customer — often faster than a 3% volume increase at flat margin.

Separate price, mix, and cost effects when margin moves quarter to quarter — a shift toward lower-margin products can mask successful supplier negotiations on individual SKUs.

Use gross profit per order or per hour for services, not only percentage — a 38% margin on high-volume low-ticket work may contribute less cash than 55% on fewer large jobs.

Feed updated gross profit into operating margin calculator when opex plans change — gross can be stable while operating margin falls from hiring.

Marketplace and platform fees belong in COGS when they scale per sale — treating them as marketing spend inflates gross margin and misprices direct versus channel revenue in the same review.

This page should target gross profit calculator, gross margin calculator, revenue minus COGS, and cost of goods sold margin searches.

It calculates gross profit, gross margin, and markup from revenue and COGS. It does not decide accounting policy, inventory method, tax, operating expenses, net profit, or product-level contribution by itself.