(a) For each year, except as provided by Sections 46.005 and 46.006, a school district is guaranteed a specified amount per student in state and local funds for each cent of tax effort, up to the maximum rate under Subsection (b), to pay the principal of and interest on eligible bonds issued to construct, acquire, renovate, or improve an instructional facility. The amount of state support is determined by the formula:
FYA = (FYL X ADA X BTR X 100) - (BTR X (DPV/100))
where:
"FYA" is the guaranteed facilities yield amount of state funds allocated to the district for the year;
"FYL" is the dollar amount guaranteed level of state and local funds per student per cent of tax effort, which is $35 or a greater amount for any year provided by appropriation;
"ADA" is the greater of the number of students in average daily attendance, as determined under Section 48.005, in the district or 400;
"BTR" is the district's bond tax rate for the current year, which is determined by dividing the amount budgeted by the district for payment of eligible bonds by the quotient of the district's taxable value of property as determined under Subchapter M, Chapter 403, Government Code, or, if applicable, Section 48.258, divided by 100; and
"DPV" is the district's taxable value of property as determined under Subchapter M, Chapter 403, Government Code, or, if applicable, Section 48.258.