Each type should have a different loan type in that field, so you can filter for that.
Have you run the PE Reports? The different percentages should come out on different tables. You can also go to File Management, select to Peer data, then create a custom census tract/columnar report - choose "Count: loan type is small business" for column 1, "amount: loan type is small business" for column 2.
You can PM me and we can go over it on the phone if you need help.