You can download a Transactions report from your Reports page in your Ivy account and filter it to only show invoices when you generate it. This report will show you all of the invoices in your account, you can also filter it to only show all invoices for a particular project. Once you have the report open in Excel, you can use a quick SUM calculation function to total up the "Markup Amount" column in the report. This should give you the total markup amount for all invoices.