Where are reports for how many forms completed?

If you want to know how many people have completed their submissions, you will see that information in your submissions page: https://www.jotform.com/help/269-How-to-View-Form-Submissions 

If you are looking to create reports from your submission data, please check this guide: https://www.jotform.com/help/326-How-to-Create-Form-Reports-in-JotForm 

If you are looking to know your monthly submissions usage, you can check it at your account's usage section: 

https://www.jotform.com/help/408-Understanding-Your-Account-Usage-and-Limits 

Let us know if you need more help, or open a new forum thread if you have a new question, we will be glad to assist you.