The Welsh Ministers may make a report specifying in relation to—
an amount which in their opinion should be used as the basis of any comparison in applying that section in place of the amount calculated by the authority as its budget requirement for a financial year falling before the year under consideration.
References in this section to the alternative notional amount are to the amount so specified.
A report under this section—
If a report under this section is approved by resolution of the National Assembly for Wales section 52B above shall have effect, as regards the year under consideration and any authority to which the report relates, as if the reference in subsection (4) to the amount calculated by the authority as its budget requirement for a financial year falling before the year under consideration were to the alternative notional amount for the year so falling.