If you have a specific goal for the year, then perhaps it would be better to set up the accrual per paycheck, not per hour worked. It's simpler for employees to understand.
Still...
Assuming the employee works full time, there are about 2080 work hours in the year (52 weeks * 40 hours = 2080 hours)
So...
The vacation accrual per hour is 40 / 2080 = .01923, which QB will round down slightly to 0.01917 because it stores time as minutes and seconds, and that's as close as you can get.
The sick accrual per hour is 24 / 2080 = .01154, which QB will round down slightly to 0.01139, again because it stores time as minutes and seconds, and that's as close as you can get.
Note that when you set it up by hour, if your employees work more than 40 hours per week, then they'll accrue more than the standard, and if they work less they'll accrue less. This may or may not be what you want...
