When copying a formula gives strange results
If a formula that always needs to point to the same value, like a fixed exchange rate or tax rate, gives odd results after being copied down a column, the most likely cause is that it is using a relative reference instead of an absolute one.
Check out conditional formatting too
Once your formulas are calculating correctly, using conditional formatting to highlight the results that matter most is a natural next step for making a spreadsheet easier to read.
Frequently Asked Questions
What happens when I press F4?
With a cell reference selected inside a formula, pressing F4 quickly cycles through absolute, mixed, and relative reference styles.
Does it always matter if I skip using absolute references?
No. If you are only writing a formula once and not copying it elsewhere, relative and absolute references produce exactly the same result.