Need help excel data search

DEAR RESPECTED EXCEL MEMBER I WANT HELP FOR EXAMPLE : WE ARE PURCHASE ONE ITEM FOLLOWING UNIT PRICE 6.50 AND AFTER TWO THREE DAYS OR ONE WEEK AGAIN WE ARE PURCHASE SAME ITEM BUT PRICE IS DIFFRENT 6:90 OR 7:10 LIKE THAT WE ARE RECEIVING INVOICE FROM THE SUPPLIER......IAM MAKING THE PURCHASE ORDER AS PER INVOICE PRICE BUT I DONT KNOW LAST TIME WHICH PRICE WE ARE PUCHASE....SO FOR WHAT I MEAN TO SAY IN MY P.O FORMATE IS IT POSSIBLE IF I TYPE THE ITEM DESCRIPTION (pve flange 1" x sch80) OLD (previous)PRICE WILL DISPLAY LIKE THAT 6.50.....ECT
SHEET-1 PURCHASE ORDER ......... SHEET-2 PRICE DATA

THANKS