Which reports are currently on your marketing dashboards?

As a Marketing Coordinator in learning, I am given a task to report the number of lead submissions thru forms and the Contact Us page of our website. I am using a Leads to Demo report, from form submission to agreeing to a demonstration session type of report. I still haven’t got the greater chance to navigate and create other reports, I wish to learn how to generate a report that tallies the previous month’s lead to demo report.