info record price update

Dear MM Guru's

I have a requirent where the purchase order price keeps on changing since it is fluctuating , since i have defined the price in infor record a fixed price, i dont want to change the price in infor record everytime when ther is price change at the time of receitp.

Is there any way where if i change the price in PO it should update the price in infor record automatically.

Suggestion will be worth appreating..

Regards

SARFRAZ