[vba] What's the quickest way to multiply multiple cells by another number?

If I have a block of cells such as A1:D5, what's the quickest way of multiplying each cell by another number, 1.1 using Microsoft Excel?

Select Product from formula bar in your answer cell.

Select cells you want to multiply.

If it doesn't need to be a macro, then just put =A1*1.1 into (say) D7, then drag the formula fill handle across, then down.

To multiply a column of numbers with a constant(same number), I have done like this.

Let C2 to C12 be different numbers which need to be multiplied by a single number (constant). Then type the numbers from C2 to C12.

In D2 type 1 (unity) and in E2 type formula =PRODUCT(C2:C12,CONSTANT). SELECT RIGHT ICON TO APPLY. NOW DRAG E2 THROUGH E12. YOU HAVE DONE IT.

C       D       E=PRODUCT(C2:C12,20)

25  1   500
30      600
35      700
40      800
45      900
50      1000
55      1100
60      1200
65      1300
70      1400
75      1500

Put the number you want to multiply by in a cell that is not in your range. Select the cell and "Copy" it to the clipboard. Next, select the Range A1:D5, and from the menu choose Edit|Paste Special. A dialog box will appear. In the "Operation" area, select "Multiply" and click "OK".

1. Enter the multiplier in a cell
2. Copy that cell to the clipboard
3. Select the range you want to multiply by the multiplier

4. (Excel 2003 or earlier) Choose Edit | Paste Special | Multiply

   (Excel 2007 or later) Click on the Paste down arrow | Paste Special | Multiply

As one of the answers above says: " then drag the formula fill handle." This KEY feature is not mentioned in MS's explanation, nor in others here. I spent over an hour trying to follow the various instructions, to no avail. This is because you have to click and hold near the bottom of the cell just right (and at least on my computer that is not at all easy) so that a sort of "handle" appears. Once you're luck enough to get that, then carefully slide ["drag"] your cursor down to the lowermost of the cells you want to be multiplied by the constant. The products should show up in each cell as you move down. Just dragging down will give you only the answer in the first cell and a lot of white space.