If your formulas are returning unexpected results, checking the reference type is the first step in debugging. Adding the dollar sign fixes either the row, the column, or both, ensuring the reference points to a specific cell regardless of where you paste the formula.
Understanding Excel $ Sign Row and Column Locking
In a table, you can use structured references that are inherently structured and often dynamic. The Mechanics of the Dollar Sign Placing the $ symbol in front of the column letter, row number, or both locks that part of the reference.
Instead of switching to the keyboard, you can simply press the F4 key while your cursor is on a cell reference in the formula bar. Absolute References To grasp the purpose of the $ sign, you must first understand the default behavior of Excel.
How to Use the $ Sign for Row and Column Locking in Excel
A $B$1 is an absolute reference, meaning both the column and row are fixed. Advanced Usage in Functions.
More About What does the $ mean in excel
Looking at What does the $ mean in excel from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on What does the $ mean in excel can make the topic easier to follow by connecting earlier points with a few simple takeaways.