Pay ID Formula

SOLVED

Is there a way to setup a payroll formula to set up a new Pay ID that adds a premium to regular rate for a shift differential?  We do not want to add the shift column to our time entry since we use hh2 and it would cause changes in how we import time from there (like suggested in the "How do I setup a Shift Differential? (Non-Union) KB Article ID 50006). I have started with the LOOKUP(Rate (PR Pay Rate Table), "RATES", Employee (PR TIME)) formula to pull the rate but am not sure how to then multiply that by the premium.  Thanks!