It’s all in 7.G.3. You are paid for hours remaining.

It doesn’t go up. If you look at the accrual table your earned time is listed in hours and weeks for a full accrual, not a number of days paid at a particular rate.

Additionally there are scenarios where your number of days remaining doesn’t match with the number of hours, like using vacation bank time to cover a personal drop. The remaining hours are what’s paid out.