That work is already done by computers (the cash registers at the local store). For what you're are suggesting, the added workload would very much be manual human work to physically change the price tags on every item whenever the local, county, or state tax rates change.
Those items you mentioned are taxes at the state or federal level so there are only 51 different tax rates to keep track of. Sales tax can vary from city to city as some municipalities have an additional sales tax.
court of appeals now held that private plaintiffs – such as the tribes and the Native American voters – cannot rely on federal civil rights laws to bring claims alleging violations of Section 2.
Weird, I would have thought of the tribes as governmental entities, not a private plaintiff.
Needs more gowron