Every retailer, vendor, operator, and other person who sells goods and services subject to the surcharge imposed pursuant to sections 67.1185 to 67.1189 shall be liable and responsible for the payment of surcharges due and shall make a return and remit such surcharges to the county, at such times and in such manner as the governing body of the county shall prescribe. The collection of the surcharges imposed by this section shall be computed in accordance with schedules or systems approved by the governing body of the county. Such schedules or systems shall be designed so that no surcharge is charged on any sale of one dollar or less.