9. After section 16 of the Principal Act the following section is inserted:
“16A. (1) The percentage pay-out for a class A or class C gaming machine, not being a machine in a linked jackpot arrangement, is the percentage of the value of the defined number of stakes which would be payable as winnings if the machine were to be played using that number of stakes.
“(2) The percentage pay-out for a class B gaming machine, not being a machine in a linked jackpot arrangement, is the percentage of the turnover of the machine which would be payable as winnings if the machine were to be played with reasonable strategies that would be adopted by persons displaying average skills in playing the machine.
“(3) The percentage pay-out for a gaming machine in a linked jackpot arrangement is the sum of the following 2 percentages:
(a) the percentage pay-out which would be applicable to the machine under this section if it were not in a linked jackpot arrangement;
(b) the percentage of the turnover of the machine which is set aside under the arrangement for the payment of linked jackpots.
“(4) In this section—