My sister got a judgment for garnishment..?

[Spooni]

We're trying to figure out how much money will be garnished from her wages. She brings home about 1176 gross. Minus deductions, she brings home about 850 dollars. Any idea about how much she can expect to receive on her paycheck after garnishment? What she owed is a pretty low amount (about 1100 dollars) so it will be over soon. But the reason she is being garnished in the first place is because she fell on difficult times and got behind. She's worried about her rent and car and insurance payments. Any help would be appreciated. Thanks