Tax Rate Variance - Calculation Logic/Formulae

Content

1. PO is created with Non Recoverable Tax

2. PO is partially received, Invoiced and closed

3. Tax Lines are cancelled on AP Invoice.

4. Inventory valuation is hitting with an amount, unable to understand the logic. 

		Rate	Qty	Amount	Comments
Ordered	Item	9.94	5,390	53576.6
	Tax		8.25%	4420.07
Received & Invoiced	Item	9.94	4,342	43159.48	PO Closed
	Tax		8.25%	3560.66	Tax Line cancelled on AP Invoice

 

In Cost Management, Inventory valuation is hit with below amount. Cost information Screenshot in the word attachment for reference. 

Item Price	9.94
NRTax	0.82005
TRV	-0.6606
Total	10.09945	4342	43851.812	Inventory Valuation

Question : How/What is the logic to calculate TRV -0.6606/item calculated ? Amount 43851.81 going into Inventory valuation is different from 43159.48 which is the actual invoice amount.