paid group

pm
still confused about how the roll over works, 

i had 8000 yesterday and i used maybe like 5000 of it and then this morning i was back at 4600 like the other 3000 didnt rollover

is it like 1 day worth of rollover then if you dont use it all that day it resets again?
i wouldve thought it was continual rollover, ie assuming 4000 daily allowance:
day 1 - 4000 (use 0)
day 2 - 8000 (use 3000)
day 3 - should be 9000 no?

am i missing something? 
trying to optimize payroll

PM bossman!
Not sure how it works too, checked the formula on dune and its confusing