The ROUNDDOWN function rounds a number down to a given number of places. The number of places is controlled by the number of digits provided in the second argument (num_digits). For example, these formulas round the number 5.89 down to 1 and zero places:
This tells Excel to take the value in B7 (1999.9985) and round it to the number of digits in cell C7 (2) with a result of 1999.99 Notice that even though the number in the 3rd position to the right of the decimal is 8, it is still rounded down.
In the table, the ROUNDDOWN function is used to round the same number (1999.9985) to a decreasing number of digits, starting at 2 and moving down past zero to -3. Note that positive numbers round to the right of the decimal point, while digits specified less than or equal to zero round to the left. At each step, numbers that would normally be rounded up are rounded down.
You can see that ROUNDDOWN is a rather heavy handed function, so use it carefully. You can use the FLOOR function to round a number down to a given multiple. If you want to discard the decimal portion of a number, you can use the TRUNC function.
The ROUND function rounds a number to a given number of places. The number of places is set by the number of digits provided in the second argument ( num_digits ). For example, the formulas below round the number 5.86 to 1 and zero places: = ROUND...
The ROUNDUP function rounds a number up to a given number of places. The number of places is controlled by the number of digits provided in the second argument ( num_digits ). For example, these formulas round the number 5.13 up to 1 and zero places...
The Excel ROUNDDOWN function returns a number rounded down to a given number of places. Unlike standard rounding, where only numbers less than 5 are rounded down, ROUNDDOWN rounds all numbers down.
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