(1) For state aid calculated for all school fiscal years except school fiscal year 2010-11, the cost growth factor shall equal the sum of: (a) The basic allowable growth rate pursuant to section 79-1025 for the school fiscal year in which the aid is to be distributed; plus (b) the basic allowable growth rate pursuant to section 79-1025 for the school fiscal year immediately preceding the school fiscal year in which the aid is to be distributed.

(2) For state aid calculated for school fiscal year 2010-11, the cost growth factor shall equal the sum of: (i) One; plus (ii) the basic allowable growth rate pursuant to section 79-1025 for the school fiscal year in which the aid is to be distributed; plus (iii) the basic allowable growth rate pursuant to section 79-1025 for the school fiscal year immediately preceding the school fiscal year in which the aid is to be distributed; plus (iv) two percent.