Notwithstanding any other provision of law, for each fiscal year, prior to calculating the increase in funding amount specified in Section 42287, the Superintendent of Public Instruction shall increase the funding amounts specified in Sections 42281, 42282, and 42284, by the product of subdivisions (a) and (b): (a) The amount per unit of average daily attendance received by the district pursuant to Section 46201 in the prior fiscal year. (b) The average daily attendance for each necessary small school and necessary small high school for which the district received funding in the prior fiscal year pursuant to Section 42281, 42282, or 42284, as appropriate.