Let's set up the Subtotal option so you can add the item to your transactions, CLN2. I'm here to help ensure the process is a breeze for you. 

Here's how: 

1. In your company, head to the Lists menu at the top bar and choose Item List. 
2. Click the Item drop-down and select New.
3. Press the Type drop-down and choose Subtotal.
4. Go to the Item Name/Number field and enter a name that you'll on the entry. 
5. Fill in the Description field. 
6. Head to the Columns to total section and select any of the following: Quantity, Amount, Price, and Cost. 
7. Click OK for the changes to take effect. 

I've attached a screenshot for visual reference:

Next, create the transaction and place the Subtotal as a line item from there. Here's an article that discusses in detail how to apply a discount while recording a payment or add one directly on the invoice: Use discount and subtotal items.

Furthermore, this reference will show you how to tailor the data, and add or remove information on the header and footer, to name a few: Customize reports in QuickBooks Desktop.

Keep me posted if you have other sales-related concerns or additional questions about refining the look of your sales forms. I'll get back to make sure you're taken care of.