Depends on many factors.
1. New vs old: new girls tend to get booked up when they first start working, one girl from Mirage told me when she started she was doing 8 guys a day but after a few months, it's down to 1-2 guys a day. Girls will end shift a few hours early if nobody's booking.
2. Beauty: good looks + big tits & ass means more business
3. Attitude and service: getting guys to visit once is easy but getting them to come back you need to be nice to them.
4. Ethnicity: a young blonde tend to get a lot of bookings compare to say Indian girls.
5. Rate: $160 vs $400 makes a big difference.
6. Location: I'm not spending 1 hour driving to Downtown and pay $20 parking when another good-looking girl is 15 minutes away on the west end.
7. Efficiency of the booker: if I text you and you reply 2 hours later...
8. Reputation of the agency: guys sticks to places they are comfortable with.
9. The current economy: when inflation is sky high...guys just come out less.
10. Other: STI scares, police stings, time (March Break) etc etc etc.
But to answer your question:
Assume she's 9/10 in looks and charging market prices for incall: half hour and 1 hour prices.
Chances are she's will be pretty booked up, and chances are they will not work on Leolist unless they have their own booker / pimp because you cannot answer phone calls and servicing clients at the same time.