Copy a formula in Excel

1. Select the cell that contains the formula  you want to copy.
2. On the Home tab, in the Clipboard group, click Copy.
3. Do one of the following:

• To paste the formula and any formatting, on the Home tab, in the Clipboard group, click Paste.
• To paste the formula only, on the Home tab, in the Clipboard group, click Paste, click Paste Special, and then click Formulas.

  You can paste only the formula results. On the Home tab, in the Clipboard group, click Paste, click Paste Special, and then click Values.

1. Verify  the cell references in the formula produce the result that you want. If necessary, switch the type of reference by doing the following:
   1. Select the cell that contains the formula.
   2. In the formula bar (formula bar: A bar at the top of the Excel window that you use to enter or edit values or formulas in cells or charts. Displays the constant value or formula stored in the active cell.) , select the reference that you want to change.
   3. Press F4 to switch between the combinations.

You can also copy formulas into adjacent cells by using the fill handle

(the fill handle is the small black square in the lower-right corner of the selection. When you point to the fill handle, the pointer changes to a black cross.)

After verifying that the cell references in the formula produce the result that you want in step 4, select the cell that contains the copied formula, and then drag the fill handle over the range that you want to fill