calculate the followers difference/grow by day

 
Hey guys,

I´m using SQLite and trying to calculate the followers difference by day

This is my model:

class Statistics(models.Model):

    followers = models.IntegerField()

    last_update = models.DateTimeField(auto_now_add=True)

This are my database rows:

"6" "50" "2018-05-29 00:25:48.276102"
"1" "100" "2018-05-29 00:26:48.276102"

"3" "200" "2018-05-30 00:27:04.178444"

"5" "250" "2018-05-30 00:30:04.178444"

"4" "300" "2018-05-31 00:27:04.178444"

And the result I´m tryting to achieve is:

followers | last_update
150          2018-05-30
50           2018-05-31

# I´m new to Django and thinking about use a Manager, but don't know if´s doable using a Manager
# Does anyone has a suggestion ?

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