In the estimate "Costings" tab there are three ways to add markup:
Clicking the "Markup" hyperlink at the bottom of the screen will open up a new page which will allow you to add mark up to the entire estimate.
Markup can be added to individual sections, or Categories of the estimate
Markup can be added to just individual items
To then see, the Total Markup applied to the item, simply click the dollar amount under the Quote Total heading.
From here, you can then further click on the Show breakdown button to see a complete breakdown of where the markup originates from.
Please note: all the areas you add mark up will compound the final mark up total across the estimate