division in footer

Is there a simple way to get the division value of two footer columns in a third footer column? Something like #stat_multi_total except for division instead of multiplication? I have the values in two columns the average in the third column and I want the sums of the values in the footers for the 2 value columns and the average in the footer for the average column. The #stat_avg will do the average of the averages which is not accurate.


I ended up doing:
footer.cells[16].firstChild.innerHTML = ( parseFloat(footer.cells[6].firstChild.innerHTML)/parseFloat(footer.cells[4].firstChild.innerHTML) )*100;

with a function attached to onStatReady.