>OK, Thanks
>
>Kev

While you're thinking this over, a third option might come to mind: Hard-coding the total line to 100% instead of calculating it.

Don't do that. The total line should be calculated so that you can have a check for "reasonableness" when looking over a report. Rounding it to 100% should be ok, since the numbers would have to be between 99.5 and 100.49 for you to get 100.