It's my pleasure and thanks for the quick response too, @Loyalcompanions.

Good to hear that you have a clearing account in QuickBooks Online. I have here the easy steps on how to allocate your inventory fees. 

First, you can either create an Invoice or Sales receipts in your account. Then add a negative amount in the second line for your fees. Let me show you how. 

1. Go to the Plus icon, then choose either Invoice or Sales Receipt. 
2. Pick a name in the Customer drop-down.
3. Add the exact item in the first line, then enter the amount. 
4. In the second line, click +Add new to add a service fee. Make sure that the amount fee is negative to deduct from the total amount. 
5. Choose your clearing account in the Deposit to drop-down if you're using Sales Receipts.
6. Tap Save and close. 

Once done, you can receive the payments and deposit the funds if you're using an Invoice. Please follow the steps below. 

1. Select the +New button on the left side. 
2. Click Received Payments and follow the on-screen instructions.
3. Go back to the Plus icon, and choose Bank deposit. 
4. Pick Clearing Account in the Account field. 
5. Check the box perpendicular to the customer's name.
6. Tap Save and close. 

After that, you can always visit your clearing register to track all the funds you've deposited to. See the sample screenshot below for your reference. 

Additionally, I'd still recommend consulting your accountant to ensure your inventory reports are accurate. 

Furthermore, feel easy to visit any customer and inventory reports to track all the transactions you've entered into the system. Then customize it to show specific details. For the complete instructions, check out this page: Run reports in QuickBooks Online.

Lastly, visit these articles below about how to calculate COGS and adjust inventory value.

• Cost of goods sold: How to calculate and record COGS
• Adjust inventory quantity on hand.

Leave a comment below if you have further questions about your inventory. I'll be here to keep helping. Take care.