Most accountants charge $250 - $350 ph nowadays.
Keep in mind for any business, there are overheads.
Let's say your business employs someone for $80k pa.
The cost to your business is likely to be in the range of $100 - $200 per hour without ANY profit (taking into account office rental, furniture, equipment, utilities, insurance, workcover, etc etc etc).
Cheers,
The Y-man