Explanation
The Excel FLOOR function rounds a number down to a given multiple. The multiple to use for rounding is given as the second argument ( significance ). If the number is already an exact multiple, no rounding occurs. FLOOR works like the MROUND function , but unlike MROUND, which rounds to the nearest multiple, FLOOR always rounds down to the given multiple.
In the example shown, the formula in cell D6 is
=FLOOR(B6,C6)
This tells Excel to take the value in B6 ($33.39 ) and round it down to the nearest multiple of the value in C6 (5). The result is $30.00, since 30 is nearest multiple of 5 below 33.39. Likewise, in cell D7, we get 30 when rounding down using a multiple of 10.
You can use FLOOR to round prices, times, instrument readings or any other numeric value.
FLOOR rounds down using the multiple supplied. You can use the MROUND function to round to the nearest multiple and the CEILING function to round up to a multiple.
Explanation
The MROUND function rounds a number to the nearest given multiple. The multiple to use for rounding is provided as the significance argument. If the number is already an exact multiple, no rounding occurs and the original number is returned. You can use MROUND to round prices, times, instrument readings or any other numeric value.
In the example shown, we are using MROUND to round the price in column B using the multiple in column C. The formula in cell D6, copied down the table, is:
=MROUND(B6,C6)
This tells Excel to take the value in B6 ($63.39) and round it to the nearest multiple of the value in C6 (5). The result in D5 is $65.00, since 65 is the nearest multiple of 5 to 63.39. In the following rows of the table, the same number is rounded using different multiples.
Note that MROUND always rounds to the nearest value using the specified multiple. If you need to round either up or down using a multiple, use the CEILING or FLOOR functions.
