What happens when I add criterion to ‘Submits to’ option?

On adding a criterion to Submits to option, Reports belonging to the approver that meet the criterion will be submitted to the user selected from Submits to drop-down.

For ex: If the criterion for the Submits to is set to $100, then the approver can approve his own expense reports that amount to less than or equal $100. If the reports meets the criterion, they will be sent to the person selected from Submits to drop-down for approval.