Markup isn’t a rip-off , it covers your time picking up materials, handling, admin, warranty risk, and the fact you’ve sourced and supplied everything.

Charge only cost price and you’re leaving profit on the table.

Let's break it down.

If your supplier charged $450, you might bill the customer $750.

Here's a general guide:

Under $100: 100% margin

$100–$500: 40–50% margin

Over $1,000: 10–30% margin

The bigger the bill, the smaller the margin. Every bit of margin matters.