round (a number) down(redirected from rounding it down)
round (a number) down
To use the next-lowest number, especially so as to eliminate decimal places. (Usually done when the non-whole number is .49 or less; higher than that, and the number would typically be rounded down.) Most stores mark their prices at .99 instead of rounding them up to whole numbers. The accountant had been using the exact numbers from the sales data, while I had been rounding them up when doing my own calculations.
round something down
to reduce a fractional part of a number to the next lowest whole number. (See also round off to something.) You can round this figure down if you want. It won't affect the total all that much. Please round down all figures having fractions less than one-half.