Nested functions in Excel refer to combining the operations of two or more functions in one cell.
This is done by placing one function inside the other so that the second function is used as an argument for the first function.
In the Nested ROUND and SUM functions tutorial the SUM function is placed inside the ROUND function.
Because Excel executes the innermost function first, in this tutorial the SUM function will first add up the data before ROUND function rounds off the result to the required number of decimal places.
To find out all the details, read the Nested ROUND and SUM Functions Tutorial.
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