I know I can go into the Pivot Table options and change "For empty cells show: 0", however that makes all blanks in the Pivot Table zeros, and there are other place that I actually want blanks.

The best solution I have come up with is to use an IF function, =IF([Numerator]=0,0,DIVIDE(NUMERATOR,DENOMINATOR)) However this solution seems cumbersome (especially when you add all the filters I am using to determine the numerator) and I think there should be a better way of handling this.

If you know of a trick to get PowerPivot to return a Zero when the Numerator is Zero I would appreciate it.