How to Use the ROUND, ROUNDUP, and ROUNDDOWN Functions in Excel

The ROUND, ROUNDUP, and ROUNDDOWN Functions

1. Start with a number that has extra decimals

• In the video, the example begins with values that contain more decimal places than you would want in a report.
• This is useful when you are working with percentages, revenue figures, or KPI calculations that need cleaner presentation.
• The goal is to control how Excel handles those decimals depending on the reporting need.

2. Use ROUND to return a standard rounded result

• Start with the ROUND function when you want Excel to round normally.
• In the walkthrough, the function is tested with a decimal value to show how the result changes depending on the number of digits selected.
• This is the best option when you want a balanced, conventional rounding result for financial reports.

3. Change the number of digits to control the output

• The video shows how the second argument changes the result:
  • 0 digits rounds to a whole number
  • 1 digit rounds to one decimal place
  • 2 digits rounds to two decimal places
• This is helpful when deciding whether a value should appear as a whole number, a tenth, or a more precise figure.

4. Use negative digits to round to the left of the decimal

• The walkthrough then shows that ROUND can also round larger values using negative digits.
• Instead of rounding cents or decimals, Excel rounds to larger place values such as tens, hundreds, or thousands.
• This is especially useful when cleaning up large revenue numbers or summary totals in management reports.

5. Test ROUND on a larger revenue value

• In the example, the function is applied to a revenue number so you can see how negative digits affect bigger values.
• As the digit setting moves further left, the rounded result becomes less precise and more summarized.
• This helps when you want cleaner executive-level reporting instead of exact transaction-level detail.

6. Use ROUNDUP when you always want to round upward

• Next, the video demonstrates ROUNDUP.
• This function always pushes the number upward based on the place value you choose.
• It is useful when you want a conservative estimate, a capacity buffer, or a number that should never round downward.

7. Test ROUNDUP with different digit settings

• The walkthrough shows that ROUNDUP behaves differently from normal rounding because it always increases the value at the selected place.
• The function is tested with:
  • whole numbers
  • decimal places
  • larger place values using negative digits
• This makes it easier to understand how Excel forces a value upward even when the decimal portion is very small.

8. Use ROUNDDOWN when you always want to round downward

• The video then switches to ROUNDDOWN using a revenue amount.
• This function always lowers the number at the selected place value.
• It is useful when you want a controlled floor, a conservative report value, or a number that should never round up.

9. Test ROUNDDOWN across decimals and larger place values

• In the example, ROUNDDOWN is applied to:
  • whole dollars
  • one decimal place
  • two decimal places
  • tens and hundreds using negative digits
• This shows how the function trims values down instead of applying normal rounding rules.

10. Compare all three functions side by side

• The main purpose of the walkthrough is to help you see the difference between:
  
  
  • ROUND for standard rounding
  • ROUNDUP for always rounding higher
  • ROUNDDOWN for always rounding lower
• Seeing the same type of value through all three functions makes it easier to choose the right one for reporting.

11. Use the right function based on reporting needs

• The video highlights how these functions help clean up financial reports.
• They are especially useful when you want:
  • cleaner dollar values
  • rounded percentages
  • simplified KPI outputs
  • more readable summary reports
• Instead of showing long decimal strings, you can present numbers in a way that is easier to understand and easier to communicate.

12. Keep examples in the worksheet for reference

• At the end of the walkthrough, sample uses of ROUNDUP and ROUNDDOWN are left in the file as reference examples.
• This makes it easier to revisit the workbook later and remember how each function behaves in different situations.