[dunhill]

@chaley
@davidfor

I am reading your comments carefully.

Thanks to run with the word program. It has been overlooked. several eyes see better than two.
I have changed the format so that I do not get the result in decimals with this syntax:
program: format_number (days_between (field ('#dateendded'), field ('# goodreadsstarted1')), "{0: 5.0f}")
I must revise, similarly because with some dates it does not calculate me and they are loaded in the same way.