Many of the gasoline taxes are a fixed rate per gallon. Some use percentage but it is a lesser portion of all the taxes.
“Many of the gasoline taxes are a fixed rate per gallon.”
True, but here in California we have both a per gallon tax ( supposedly to fund road maintenance and construction) and the normal sales tax on the total price (including the per gallon tax). So I imagine as thirsty as Jerry the Fairy is for revenue, the slide in the price of gasoline isn’t good.