“Great job, you've already earned 1300 points, but there are 5 more days in this month. How many points a day do you need to reach your goal of 1580 points?”

You would have to get 56 points everyday.
If you subtract 1300 from 1580 you get 280. divide 280/5 which equals 56.
56*5=280
280+1300=1580.
56 is the amount of points you need