244.48. For the purposes of section 244.47, the quotient that is valid for each of the fiscal years for which a property assessment roll applies is the quotient obtained by dividing the number referred to in the second paragraph by the number referred to in the third paragraph.
The number to be divided is the number obtained by subtracting one from or by adding to one, as the case may be, the decimal that corresponds to the percentage increase or decrease, established by a comparison, between the roll referred to in the first paragraph as it exists on the day of its deposit and the preceding roll as it existed on the preceding day, of the total of the taxable values of the residential assessment units, without taking into account units in which there are six or more dwellings.
The divisor number is obtained by applying the rules set out in the second paragraph in respect of the total of the taxable values of the residential units of assessment in which there are six or more dwellings.
For the purposes of the second and third paragraphs, the units of assessment and the values are those that, if the summary of the roll concerned reflecting the state of the roll on the day of its deposit were accompanied by a summary of the preceding roll reflecting the state of that roll on the preceding day, would be listed on the form prescribed by the regulation made under paragraph 1 of section 263 pertaining to such a summary under the following headings:
(1) in the case of the aggregate of residential units and their taxable values, the heading designated “1 --- RESIDENTIAL”;
(2) in the case of the units in which there are six or more dwellings and their taxable values, all successive headings beginning with the heading designated “10 -- Dwellings/Number: 6 to 9” and ending with the heading designated “10 -- Dwellings/Number: 200 and more”.
The assessor who deposited the roll referred to in the second paragraph shall, on request, furnish to the municipality the percentages fixed in accordance with the second and third paragraphs.
If the municipality avails itself of the power under section 253.27 in respect of the roll referred to in the first paragraph, the following percentages shall be used rather than the percentages fixed pursuant to the second and third paragraphs:
(1) where the roll applies for three fiscal years, one-third and two-thirds of those percentages, respectively, for the first and second fiscal years; and
(2) where the roll applies for two fiscal years, one-half of those percentages for the first fiscal year.