Sales report shows you how your sales process is moving along, how much revenue is coming in and how many deals you're closing.
Go to Reports > Sales.
The report shows you:
New deals - the number of deals created in the selected period
Sales potential - how much money you could potentially get from all the new deals
Won deals - the number of deals you won
Lost deals - the number of deals you lost
Won revenue - how much revenue comes from the deals you won
Lost revenue - how much revenue is lost
If you want to customize the report you can use the blue toolbar at the top.
You can save the report for later use or export it using the buttons highlighted below.