253.15. The percentage of increase fixed by the by-law as the threshold of eligibility for averaging the tax payments must be equal to or greater than the percentage obtained by adding 10 % to the percentage of increase of the taxation revenues of the municipal corporation.
To establish the percentage of increase of the taxation revenues of the corporation, the total amount of revenues referred to in paragraph 1 of section 234 showing in the budget for the fiscal period considered is compared to the total of such revenues showing in the budget and any supplementary budget for the preceding fiscal period.
Where the total taxation revenues are reduced or increased by reason of the constitution of a new municipal corporation, an amalgamation, an annexation or any other modification of the territory of the municipal corporation, the corporation shall establish the percentage of increase of its taxation revenues as if its territory had been the new territory during the two fiscal periods.