As used in this article and except as otherwise expressly provided herein:
"Change in population" of a school district or a community college district shall be the percentage change in the average daily attendance of the school district or community college district from the preceding fiscal year, as determined by a method prescribed by the Legislature.
"Change in population" of the State shall be determined by adding (1) the percentage change in the State's population multiplied by the percentage of the State's budget in the prior fiscal year that is expended for other than educational purposes for kindergarten and grades one to 12, inclusive, and the community colleges, and (2) the percentage change in the total statewide average daily attendance in kindergarten and grades one to 12, inclusive, and the community colleges, multiplied by the percentage of the State's budget in the prior fiscal year that is expended for educational purposes for kindergarten and grades one to 12, inclusive, and the community colleges.
Any determination of population pursuant to this subdivision, other than that measured by average daily attendance, shall be revised, as necessary, to reflect the periodic census conducted by the United States Department of Commerce, or successor department.
However, the "appropriations limit" of each entity of government for fiscal year 1978-79 is the total of the appropriations subject to limitation of the entity for that fiscal year. For fiscal year 1978-79, state subventions to local governments, exclusive of federal grants, are deemed to have been derived from the proceeds of state taxes.
Cal. Const. art. XIIIB § 8