Hello!

I have a teacher looking for an online payroll calculator (free) for her finance classes (going from gross pay to net pay) and taxes.  She has tried to use Payroll for America, but it was too confusing and does not always work for her.  We are looking for something more simplified and user/student friendly. 

Does anyone know if their finance teachers at the high school level use something for this type of assignment/class?  If there are only paid versions, we are interested in those as well for next year if it is worth purchasing (if there is any money in her dept. budget)  

I have no idea where to begin with this, so any help would be very appreciated!  Thanks!