Accounting entries for Trading good

Hi expert

I have maintain STD price for trading good 250.the FI entries I have got is .

GR/IR - 1344.87-

Trading u2013 250

Gain/Loss u2013 1094.87

But while doing Miro I have got FI entries are

GR/IR 1344.87

TO, vendor 1344.87 u2013

Then I cancel the Miro I have got FI entries are

GR/IR 1344.87 u2013

To vendor 1344.87

But my question is while doing miro and cancelling miro y no entries is hitting up for RS 250

Regard