I. If a cooperative school district was organized prior to July 1, 1963, during the first 5 years after the formation of a cooperative school district each preexisting district shall pay its share of all capital outlay costs and operational costs in accordance with either one of the following formulas as determined by a majority vote of the cooperative district meeting: (a) All such costs shall be apportioned on the basis of the ratio that the equalized valuation of each preexisting district bears to that of the cooperative district; or (b) One-half of all such costs shall be apportioned on the basis of the ratio that the equalized valuation of each preexisting district bears to that of the cooperative district and 1/2 shall be apportioned on the average daily membership for the preceding year. (c) Some other formula offered by the cooperative school board with the board's recommendation, adopted by the cooperative school district and approved by the state board of education. II. Home education pupils who do not receive services from the cooperative school district, except an evaluation pursuant to RSA 193-A:6, II, shall not be included in the average daily membership relative to apportionment formulas.