HI @donnadeskins55
Can you give examples of the breakpoints?
Playing around with the equations for discounts and markups, I think you could do this if there was a fixed relationship between standard price and cost for your customer, i.e. price=2Xcost. Otherwise, the discount % would be a function of standard price, cost and desired markup% and it would require a customization to change the business logic.
There was a similar request for mark ups on items for service. The ability isn’t there yet but is marked for future consideration. Cost Markups for Service Orders / Appointments | Community (acumatica.com)