EXPENSES

Define costs so contribution margin and profit can be calculated.

Fixed, per month

£0

0 lines. Payable whatever you sell.

Variable, per order

£0

Flat charges that apply to every order

Variable, share of revenue

0.00%

Percentage charges such as payment fees

Fixed, per year

£0

Monthly total times twelve

Fixed costs

Paid whether or not an order comes in: rent, salaries, software, retainers. Enter a monthly figure and divide an annual cost by twelve. These are what stand between contribution margin and real profit.

No fixed costs defined yet. Until they are here, this software can tell you whether your advertising paid for itself, but not whether the business made money.

Variable costs

Per-order costs that scale with sales: shipping, fulfilment, packaging, transaction fees, and COGS if it is not held in Shopify. Do not add VAT here. Net revenue already excludes it, so entering it as a cost subtracts it twice and understates every margin on the dashboard.

No variable costs defined yet. Without them CM3 counts only COGS and ad spend, so it reads better than the truth by whatever shipping and fees actually cost you.

Default COGS

COGS sourceShopify already holds a unit cost per variant and this app reads it: 100% of the last thirty days of sales are costed from it. Only switch to manual if that cost is wrong or missing.