Oriole Corporation sells item A as part of its product line. Information as to balances on hand, purchases, and sales of item A are given in the following table for the first six months of 2020. Quantities Unit Price of Date Purchased Sold Balance Purchase January 11 460 $4.60 January 24 1,380 1,840 $4.9 February 8 360 1,480 March 16 610 870 June 11 660 1.530 $5.3