Wrong GR/IR entry in FI Migo Document?

Hi,

I have a issue with GR/IR creation while Creating a MIGO document.(dealer Case) The details are:

PO - 100 pcs x 200 Rs. = 2000+ 2 % CST 400 comes to 20400/- total amount. As it is dealer purchase, the rate 200 includes Basic and Excise amount.

While creating MIGO document  we received Excise Duties for BED, Ecess & SHE for 100 pcs.

Also we put required data in Excise tab as below:

                         Base Amt      BED          AED          ECess          SHE

For 100 pcs      19200         2304            0               46.08           23.04

MRP indicator ticked and GRPO  as trans.type

System passed below FI entries :

for MIGO :

Stock RM                   18,058.34

PL-Vnd-Mtl-GR/IR        18,058.34-

It should be Rs. 19200 as we mentioned earlier.

Please suggest...what is wrong