90. The amortization amounts to be paid in connection with an unfunded actuarial liability shall, for each fiscal year or part of a fiscal year of the pension plan included in the amortization period, be expressed either in the form of a uniform percentage of each active members remuneration as determined on the basis of the total anticipated payroll for the active members or in the form of a uniform sum for each active member determined on the basis of the anticipated number of active members.
For the application of the first paragraph, the provisions related to the total payroll and the number of active members are the same as those used to verify the plan’s funding for the purposes of the last actuarial valuation of the plan.