Ariz. Rev. Stat. § 15-946
A. The transportation revenue control limit for each school district for the fiscal years 1985-1986, 1986-1987 and 1987-1988 is computed as follows:
4. If the school district's transportation revenue control limit for the fiscal year 1984-1985 as provided in paragraph 2 of this subsection is less than the amount determined in paragraph 1 of this subsection, the transportation revenue control limit for the fiscal year 1985-1986 is the sum of the following:
5. If the transportation revenue control limit of the school district for the fiscal year 1984-1985 as provided in paragraph 2 of this subsection is less than the amount determined in paragraph 1 of this subsection, the transportation revenue control limit for the fiscal years 1986-1987 and 1987-1988 is the sum of the following: