Ill show you how to see the cells used in a formula/function in Excel and also how to tell which cells are using that particular formula/function.
This is a simple yet very helpful feature in Excel and it allows you to visually represent the relationship between the cells/formulas/functions in the worksheet.
This is actually very easy to do, just select the formula/function for which you want to see the cells it uses or references, and then go to the Formulas tab and click the Trace Precedents button:
Formulas tab > Trace Precedents
The best part about this feature is that you can now select other cells and go about your work in this worksheet while keeping these arrows visible. This is what makes this different than just double-clicking a formula/function, which also shows the cells used in it.
Now, if you wanted to see if there were any cells that referenced this cell/function/formula, simply select it and then click the Trace Dependents button on the Formulas Tab.
Formulas Tab > Trace Dependents
If you want to remove these arrows, simply click the Remove Arrows button or click the arrow next to that button and select which arrows you would like to remove, either the precedent or the dependent ones.
Now we are back where we started.
Remember that if you just want a quick view of the cells that are used in a formula or function you just have to double-click the desired cell and you will see a nice representation of the precedent cells in the worksheet.
However, this representation of the precedent cells will not stay visible once you have deselected the cell or continued working in the worksheet, and this is why the Trace Precedents and Trace Dependents feature is so useful.
I hope this tutorial was helpful! :)