ROUNDDOWN
Category: Mathematical Function.
Description: Rounds a number down, toward zero, to a specified number of digits.
Syntax: ROUNDDOWN(number, num_digits).
If num_digits is 0, the number is rounded to the nearest integer.
If num_digits is greater than 0 (zero), then the number is rounded to the specified number of decimal places.
If num_digits is less than 0, then the number is rounded to the left of the decimal point.