Deleting rows with non-percentage values

What I would like to do is to delete the rows in the attached Excel file highlighted in yellow (whole numbers) and to keep the rows with percentage values. Ideally I would like to have only the rows with the string "Group:" remaining along with the rows that have percentage values in them.

What I'm going to be doing is then transferring these groupings of data to another excel sheet in order to create a time series of performance by "team leads". If anybody would be willing to help me out with the first part of this I would really appreciate it. I have some idea of how to go about it using conditional logic, but I'm just not comfortable enough in VBA to do this efficiently. It would probably take me hours just to get a simple version working....