Within a schedule formula I am attempting to generate a percentage or a ratio out of 2 areas. It seems that schedules aren't able to generate a

For instance, I want to divide my hotel GFA against my total GFA to get a percentage.

If I type either 1 GFA as a number into the formula a get the correct percentage, but if I use both tagged areas in the formula I don't get a percentage or anything.

The obvious reason I would like to do this is so that I don't have to manually go into my formula's and update the specific areas once they have been redefined.

Are revit schedules not able to mixed units in formula's?

*number*from 2 or more*areas*. Is this right?For instance, I want to divide my hotel GFA against my total GFA to get a percentage.

If I type either 1 GFA as a number into the formula a get the correct percentage, but if I use both tagged areas in the formula I don't get a percentage or anything.

The obvious reason I would like to do this is so that I don't have to manually go into my formula's and update the specific areas once they have been redefined.

Are revit schedules not able to mixed units in formula's?

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