Hi Flynn
Here's an alternate to the OFFSET formula using INDEX. You may want to try it to check on calculation time needed to produce a new total when you make an entry. I suspect the difference will be small, but it may be enough to merit consideration of a change.
![](https://discussions.apple.com/content/attachment/e54f3f64-a238-4668-8462-8a2af5494309)
Table 1 represents your merc account table. The values in column J are for demo purposes only. Each is the Sum of the row numbers (minus 1) above it. The two darker cells in2 of Table 2, and has the same goal as the one in B2 of your Account Balances table.
The range notations (Table 1::J and Table 1::I ) are 'full column' references and, when used with COUNT or INDEX, includes ALL cells in the specified column. Since COUNT counts only cells containing numbers or quasi numeric values (such as durations and Date&Time values), the +1 is needed to add the header row—empty in the example, and containing the text value "balance" in your merc table)—which will not be counted by COUNT.
Regards,
Barry