(a) in region two, forty-five percent of gross gaming revenue from slot machines and ten percent of gross gaming revenue from all other sources.

(b) in region one, thirty-nine percent of gross gaming revenue from slot machines and ten percent of gross gaming revenue from all other sources.

(c) in region five, thirty-seven percent of gross gaming revenue from slot machines and ten percent of gross gaming revenue from all other sources. 2. Permissible deductions. (a) A gaming facility may deduct from gross gaming revenue the amount of approved promotional gaming credits issued to and wagered by patrons of such gaming facility. The amount of approved promotional credits shall be calculated as follows:

(1) for the period commencing on April first, two thousand eighteen and ending on March thirty-first, two thousand twenty-one, an aggregate maximum amount equal to nineteen percent of the base taxable gross gaming revenue amount during the specified period;

(2) for the period commencing on April first, two thousand twenty-one and ending on March thirty-first, two thousand twenty-three, a maximum amount equal to nineteen percent of the base taxable gross gaming revenue amount for each fiscal year during the specified period; and

(3) for the period commencing on April first, two thousand twenty-three and thereafter, a maximum amount equal to fifteen percent of the base taxable gross gaming revenue amount for each fiscal year during the specified period.

(b) For purposes of paragraph (a) of this subdivision, "base taxable gross gaming revenue amount" means that portion of gross gaming revenue not attributable to deductible promotional credit.

(c) Any tax due on promotional credits deducted during the fiscal year in excess of the allowable deduction shall be paid within thirty days from the end of the fiscal year.

(d) Only promotional credits that are issued pursuant to a written plan approved by the commission as designed to increase revenue at the facility may be eligible for such deduction. The commission, in conjunction with the director of the budget, may suspend approval of any plan whenever they jointly determine that the use of the promotional credits under such plan is not effective in increasing the amount of revenue earned.