Tax Rate Area

Hi,i have made the purchase order and i have applied LCR and Tax Rate Area, also for Tax rate area the dmaai 4350 and 4355 were hit, at the time of receiving the Purchase order.

But my question is how could i know that how much taxes is calculated, as in case of LCR, extra line is created.

For taxes no extra line is created. also Tax percent is 15%.

Then i checked Table F43121. valus are as follows

Quantity      Unit cost        Extended cost       Amount Open

10             4217.9193        6326.88                  42179.9193

The extended cost calculated is correct. it is adding 15%. Then why the open amount is still not equal to extended cost.