RE: Unit Of Measurement is in decimal
D365 transactions use 2 decimal places.
The fact that you see 2 decimal places is therefore correct.
As per why in your environment you are using 2 decimal p , you will need to check the number of decimal places in the unit of measure table.
I suspect it is 2.
Your screen is the Buyer Item Inquiry which is the sum of all transactions therefore there must be transactions that have used 2 decimal places
you can go to transactions and see all transactions where users have used 2 decimal places .