What does 'Estimated Amount Owed' mean in 'Payments and Financial reports' tab in App Store connect?

Do I owe money to apple or does apple owes money to me?
I've had 2 IAPs on my app. 1 of them was me only, and I haven't applied for any refund/cancelation of the IAP.

In Payments and Financial reports section I can see 'Estimated Amount Owed' in a country wise manner!
Does that signify the sales, and how much I'll get after deducting the apple's share or does that mean that someone applied for refund.

The IAPs are of type 'Non-Consumable'
What does 'Estimated Amount Owed' mean in 'Payments and Financial reports' tab in App Store connect?
 
 
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