Select Logical to open the function dropdown list. Excel includes several built-in functionsRAND and NOW for examplethat dont use arguments. Functions are also more accurate compared to formulas because the margin of making mistakes is very minimum.
Functions are generally more productive compared to writing formulas.
An Excel formula starts with equal to sign followed by name of function and then the values passed within the brackets. To calculate the total costs you could write b2b3b4b5 but its easier to use the SUM function. Select cell B4 to make it the active cell. You can however create a function with no arguments.