rounding the result of #stat_total

I am using groupBy() on my grid and using #stat_total to get the aggregated value of a column.
I would like to round the result of #stat_total to just 2 decimal places. Right now, by default I am seeing close to 8 digits after the decimal point. Can you please help?

Thanks
Guru

can anyone help? I even adjusted the column width to smaller sizes, it still shows upto 7 digits after the decimal point for #stat_total

solved it by using
gird.setNumberFormat(“0.00”,index);

where index is the column index, and this function works only on ron or edn type columns.