Why can't I get the date difference correctly

[Muk]

I can't get the difference in days correctly
always show like 641,234

Thanks for support

[ABG]

You clipped your screen shot so your blocks can't be dragged into AI2 directly.
Do it right, this way ...

Please download and post each of those event block(s)/procedures here ...
(sample video)

[Patryk_F]

[ABG]

Those blocks return a reasonable result:

Look in the math section for floor(), if you don't like fractions.