§ 908. Non-refundable tax credit. Each regional off-track betting corporation shall be entitled to a monthly non-refundable tax credit to be applied against the pari-mutuel tax on all pools on races conducted within New York state. Such credit shall be equal to fifty-four percent of the pari-mutuel tax attributable to such corporation's daily increase in wagers on races at each respective track authorized by this chapter on races conducted within New York state compared to such corporation's average daily wagers on races conducted within New York state during the year ending December thirty-first, two thousand four.