Click the App Launcher Icon(9 dots in top left), scroll down and click on‘Reports’.
Click‘New Report’.
Select‘Opportunities’ from the Report Type list. Click Create.
On the report, set Show to‘All Opportunities’, Date Field to‘Created Date’, Range‘All time’, set the Opportunity Status to‘All Opps’, set the field to‘Stage’ equals‘Closed Won’
Change the format to‘Summary’.
Drag across‘Close Date’ from the Fields panel to appear in the table.
Right click on Close Date and select‘Group by this Field’.
Click the dropdown arrow on close date again. Then select‘Group Dates by’ and click‘Calendar Month.
Click on‘Amount’ dropdown menu and select‘Summarize this Field’ and then select‘Sum’ and click‘Apply’.
