Quick guides
Understand the numbers and get more from the tools.
Margin & markup
Margin compares profit to selling price; markup compares it to cost. Cost 60 and price 100 gives 40% margin and about 66.67% markup. Expenses not included in cost are excluded.
Break-even units
Fixed costs divided by price minus variable cost gives break-even units. Round up. With fixed costs of 1,000 and a contribution of 25 per unit, you need 40 units.
Invoice & estimate builder
Include names, a unique reference, dates, clear items, currency, and payment instructions. Apply a discount before the percentage adjustment. PDF downloads preserve the visual document as images, so text is not selectable; keep the draft for editing.
Drafts on this device
Nothing is saved until you choose Save. Drafts include customer details and your logo; anyone using this browser profile may access them. Export a backup before clearing browser data.
Use tools offline
Prepare offline access once while connected. Then add this site to your home screen using your browser menu (on iPhone: Share → Add to Home Screen). Device storage can be cleared by your browser. This does not save your form entries.