Trouble with LOD calc for total sum of dimension

Question

Can someone help me with a tableau LOD calc? I think thats what I need here in order to sum found and not found - I'd like to have another calculated field that will add found+not =337

Here's a mocked up example with two more calculated fields the one labeled 'math' is easy but I cant get the total sum calc right:(

Answer 1

try this if it works, else give me some data to show you.

{sum{[Native C3])}