Markup is measured against what you paid; margin is measured against what you sold for. Buy at ₦1,000 and sell at ₦1,500 and that is a 50% markup but a 33.3% margin — the same trade, two very different numbers, and quoting the wrong one is how a business thinks it is making more than it is.
The free calculator at wadmaster.com/profit-margin-calculator converts between them. Inside WadMaster, recording a product's cost price means margin is worked out for you on every sale.
Yes. The invoice generator, receipt generator, VAT calculator, withholding tax calculator and profit margin calculator are all free with no account, no card, and no limit on how many documents you make. There is no trial that expires and nothing to cancel.
No. Every tool at wadmaster.com/tools works without signing up. An account is only for the part the tools cannot do: keeping a record of what you sent, seeing who has paid, and chasing what is still outstanding.
Yes, you can send the free invoice or receipt PDF to a real customer, but it does include WadMaster branding in the document footer. It is not a translucent watermark across the page. Your business and transaction details remain the main document content. Inside a WadMaster account, Free and Starter invoices also keep the WadMaster line, and Pro removes it.
