How to add two table total value into one

General discussion
1

plz suggest , how to add two different table total values into one new table / one value

refer below snap
image

2

Are you sure that none of those floor types are not also in the category total?

3

your right, floors are under one category, but thr was some family issue in revit. so i did some different way and achieved this. after that i realized that i did some long process. i would like to know how to sum with diff. table values.

4

I’d suggest a powerquery computed column based on some logic that means you have no overlap.