(c) An excise tax is hereby imposed on the storage, use or other consumption in this state of any automotive vehicle or truck trailer, semitrailer or house trailer, and mobile home set-up materials and supplies including but not limited to steps, blocks, anchoring, cable pipes and any other materials pertaining thereto, purchased at retail on or after October 1, 1965, for storage, use or other consumption in this state at the rate of two percent of the sales price of such automotive vehicle, truck trailer, semitrailer or house trailer, and mobile home set-up materials and supplies as specified above, or the amount of tax collected by the seller, whichever is greater; provided, however, when the seller follows the Department of Revenue's suggested use tax brackets and his records prove that his following said brackets resulted in a net undercollection of tax for the month, he may report the tax due or tax collected, whichever is less. Where any used automotive vehicle or truck trailer, semitrailer or house trailer is taken in trade, or in a series of trades, as a credit or part payment on the sale of a new or used vehicle, the tax levied herein shall be paid on the net difference, that is, the price of the new or used vehicle sold less the credit for the used vehicle taken in trade.
Of the total $.02 tax on each dollar of sale provided hereunder, 58 percent of the total tax generated by this subsection shall be deposited to the credit of the Education Trust Fund; and 42 percent of the total tax generated by this subsection shall be deposited to the credit of the State General Fund.