The basic rule is that Access won't tell you anything you didn't tell it first. Which means that you store the name of the "previous" form in the Form_Close event or Form_Unload event at the moment that you close the "previous" form and try to launch the other form. I.e. you have to TELL Access which form was "previous" because it doesn't normally "know" that you need that info.
OR... maybe you don't close the previous form at all. You launch the funding form, do your thing, and then exit from it. In which case the previous form is still there (but was in the background). When you click into that form that was in the background, it is still there and still open.
And one last bit of business... that was your first post. Welcome to the forum.