When quantities are calculated there is an option to round the result to a given number of decimal points. Formever supports four rounding methods i) Bankers – round to the closest desired value, if the result is halfway then round up if the previous digit is even, round down if it is odd ii) To Lower – just round down iii) To Upper – just round up iv) Half Up – this rounds to the closest but if it is halfway between two possible values then round up.
The default method is Half Up.