Goober had lost his job at the filling station and taken a job as a cashier in a Main Street store. A customer made a purchase which the Goob rang up. Back then there were no bar codes or fancy scanners; a cashier looked at a price tag and pushed buttons. The purchase rang up at $8.98. Then the Goob added the tax. The tax came to 13 cents.
Using the above information, I calculate the Mayberry sales tax rate in the day was 1.5 percent.
At the time no earlier than 1965, since this particular episode was in color Oklahoma, says Geiger, was already charging 2 percent. You don’t want to know what the rate is today. (And if you do, it’s somewhere around here.)