Absolute reference practice

Beginner

When you apply the same rate to many rows (like a sales tax rate), you want one cell to control the rate.

If your rate is in a fixed cell, you can lock that reference with dollar signs (for example, $A$2) so it does not move when you copy the formula down.

What you need to do

In this sheet:

  • The sales tax rate is in A2
  • Unit prices are in B5:B9

Your goal is to calculate the after-tax price for each product in column C.

  1. Click cell C5 (Price with tax).
  2. Enter a formula that takes the unit price in B5 and multiplies it by (1 + tax rate).
  3. Make the tax rate cell an absolute reference (so A2 stays fixed when you copy the formula).
  4. Press Enter.
  5. Copy the formula down through C9.

To copy down, select C5 and drag the small square at the bottom-right corner of the cell down to C9.

For more in-depth information on reference types, see the absolute vs relative references article.

Need some help?

Hint 1

When you copy a formula down, cell references usually shift by a row. In this task, only the unit price should change each row. The tax rate should stay pointing to the same cell.

Hint 2

You can add/remove the $ signs quickly: select the tax rate reference inside your formula and press F4 (on some keyboards, Fn+F4) to toggle relative/absolute/mixed references.

Hint 3

If your results look wrong after copying, check what changed: the unit price reference should move from row to row, while the tax rate reference should not.