Number throughout the year for two tables

[Mamdouh Elfors]

Hi
Attached are three tables
The first is the sum of the number of cows per day and then dividing them by the number of days of the year to extract the number of cows throughout the year in the first section
The second is the same as the first, except that the days of the year are shorter
The third is the sum of the first and second. How do I find the number of days in a year for the sum of the two tables?
Thanks

 

[Mamdouh Elfors]

Sorry
There is an error in the previous post and this is corrected :
The third is the sum of the first and second. How do I find the number of cows in a year for the sum of the two tables?
Thanks