Looking to the far right-hand side of the table, where we sorted the data by goal completions, you can see how many goals are attributable to each source. A goal on your website might be something as lightweight as a newsletter sign up, or something meaningful like a contact form being completed or a request for a quote. Talk with the marketing team to see what they've got set up here.
If there are no goals being counted it might mean that your website isn't working very hard at converting visitors into sales leads, or there are no goals being tracked.
This download will help you with a strategy to fix both issues: