I was looking over Seranok’s developer stats CSV for Catalog Heaven and noticed that for commissions, the Revenue column displays the full price of the item, rather than the price that the place creator earned.
Example:
On 12/2/14, someone bought Shaggy for 50 tickets. In the spreadsheet, the Revenue column displays 35 tickets (50 * 75% marketplace fee). However, the commission is only 10% of the total price of the item, so the Revenue for that item for that day should have been 5 tickets.