Our company has set up a new 401K Safe Harbor Plan.  They contribute 3% regardless of employee contribution.  Employees are allowed to choose a flat rate per check or a percentage per gross pay.  Do I need to set up two different Deducts with one being for flat rate & other for % ?  Also if one employee chooses 3% while another choose 6% what formula would I use and where would I be able to enter the percentage for each individual selection?