How do I auto calculate?

I need to auto calculate a column of figures. I tried to use “auto calculate” under tools and was unsuccessful.

Put a checkmark in the menu Data>Calculate>Calculate automatically.

You can manually generate a calculation with F9.

I tried this method and it still doesn’t work.

Then please post/upload your file for inspection.
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Your column is never calculated?
Or not recalculated after changes in related cells?
Updates of external data not recognised?
Or are we on the topic of iterations?

My columns are never calculated. When I first installed the check register, it worked great but all of a sudden it just stopped.