Remember, throughout these projects, to follow the approaches discussed and formulas used in the chapter. You won't always be reminded of this, but it is always the requirement. Use the Construction Paper tab for the first part of this section. Row 17: Cell A17: Use CONCAT to enter the text LIFO Inventory Balance: (with colon). (PG-4a) Cell B17: Enter a formula that calculates the ending inventory balance under LIFO. (PG-4b)