is the supplemental report a subreport? if so, you want shared variables, not global.

I am not sure how you determine the Fund A for the formula, but it might need to be a variable as well.

Shared/global variables are pretty easy to use, they are used in formulas and tend to come in sets of 3:
reset, increment, display.

I think for your report though, you only really need the increment (or set in this case)

shared stringvar x := {table.field};
"" //will hide the setting of the variable.

to use the variable, all you need at the top of your of your formula is:
shared stringvar x;

now you can use x as if it was part of the formula/report and the value is whatever was set prior.

as a last note, := is the assignment operator for variables, and a global variable can be seen anywhere in a report, while a shared variable can cross the boundary into another report.

HTH

if both of the sections of report that access the shared variable are using the same shared variable, then only 1 result will prevail.

it's like have a joint checking account. 2 people write checks, which is the last check written/processed. So in this case, FundA would need its own variable as would FundB...where it gets complex is if there are x Funds being tracked.

If that were the case, I would use a shared array, and would have a 'naming' convention (or another array) to match the funds to their value (it can even be the fund name + the value...say FundA|xyz. It would take more work, but I think that something like is what you are after...unless there are always only x funds, then you could just create the variables.

HTH

you would reference it the same. In the subreport you would start the formula as:
shared numbervar array Assets;


Then in the formula itself it would be Assets[1]

The error seems to imply that the value being returned by @Total Assets maybe a string one time and number another.   If it always returns a number, the only other thought is do you 'declare' the array to have 2 members?

I haven't used arrays too often as they are kind of limited in CR, so I might be missing something...

HTH