Under Orders you will be able to see the last orders in all marketplaces, which are updated every 30 minutes. If you click on an entry, you will be shown the order details. If already available, you will be shown any profits, rebates, costs, etc. that are connected with the order by Amazon, enabling you to trace the gross profit per order.
Just hover with your mouse over the info icon to see a breakdown of all costs associated with an order.