Yearly Budget > Available seems not calculated correctly

Tiller seems by far the best way to handle our organization’s budgets and spending against it.

On the Yearly Budget tab the “Available” column seems always wrong.

Isn’t “Available” supposed to mean the remaining amount you have available from the budget?

For example in this screenshot if the amount budgeted was $104,032, actual is $80,952, shouldn’t 'Available" be $23,080?

This issue is the same in all monthly “Available” columns. Note that I’m not actually entering monthly budget figures; I’ve only entered annual and am tracking just against annual.

(We set an annual budget and do not predict how it will allocate monthly)

How are you setting an annual budget? The Yearly Budget gets monthly budget values from the Categories sheet. There isn’t an annual budget option there.

And the only intended user editable fields on the Yearly Budget sheet is the date.