Pay enquiry

Hi 

I inherited payroll when I started at my current job.

All our staff are 70hrs per fortnight 

I noticed when looking for pay info on the government pay calculator that what we are paying our staff for 70 hrs is the pay rate for a 76 rate.

I looked at the setup and it says 70hrs but yet for $100k salary the employee is earning $2,884.15 Net which is the same fortnightly net wage for a 76hr.

Is anyone else having this problem or should it have been set up differently?