Markup vs margin calculator
Two words, two different numbers, and one of them is the one that pays you.
Nothing is sent anywhere: the arithmetic runs in this page. The prefilled rates are the ones a new Drawlite account in this trade starts with, and the first thing you would do in the app is replace them with yours.
Adding 50 per cent does not give you a 50 per cent margin
It gives you 33. Margin is measured against the price, markup against the cost, and the two words get used as if they were the same one in every conversation about pricing in this industry. A contractor who marks up 20 per cent and believes they are holding a 20 per cent margin is holding 16.7, and that gap is roughly the whole of the net profit on a busy year.
What the seeded book actually holds
The default epoxy base coat is priced at $3.5 with a cost of $1.2, and the wall finish in the painting book is $1.95 against $0.62. Those are starting points to be replaced with your numbers, not recommendations -- but they show the shape: the margin on a coating line is not the margin on a fencing line, and a single company-wide markup flattens the difference out of existence.
Why this is per line and not per quote
Material-heavy lines and labour-heavy lines do not carry the same risk, and a quote is a mix of both. Drawlite snapshots the unit price and the unit cost onto every line as it is added, so the margin on a signed job is still knowable a year later, after the price book has moved on.