When you set up a worksheet on Excel you should use cell references in formulas whenever possible rather than fill in the blank values?

When you set up a worksheet on Excel you should use cell references in formulas whenever possible rather than fill in the blank values?
Where possible you should always use cell references. It makes things a lot easier when you are changing or maintaining a spreadsheet. Even if you are using the exact same value in all of a set of formulas, you should put that value into one cell, and use an absolute reference in the formula to reference it. If formulas have cell references in them, then when figures change, you do not have to redo all the formulas. You just change the relevant figures and the formulas will all recalculate them.
Values.