Given that sales equal to beginning pieces + supplies - end pieces - destroyed pieces, enter a formula in the cell range F7:F9 that returns the sales for each product.
Enter a formula in the cell range H7:H9 that returns the sales value in Drachmas and use the result to calculate the sales value in Euros in the cell range I7:I9. (the euro-drachma exchange rate is provided in cell G2)