(1) This section
applies if a provision of this Act requires the amount that is relevant for a
particular financial year (in this section called
"the relevant financial year") to be obtained by varying the corresponding
amount for the preceding financial year (in this section called
"the preceding financial year") according to this section.
(2) The amount for
the relevant financial year is obtained —
(a) by
varying the amount for the preceding financial year by the percentage by which
the amount that the Australian Statistician published as the Wage Cost Index,
ordinary time hourly rates of pay (excluding bonuses) for Western Australia
(in this subsection called
"the WCI") varied between the last December quarter before
the preceding financial year commenced and the last December quarter before
the relevant financial year commenced; or
(b) if
the calculation under paragraph (a) cannot be performed for a financial
year because the WCI for a relevant quarter was not published, by varying the
amount for the preceding financial year in accordance with the regulations,
and, if necessary,
rounding the resulting amount off under subsection (3).
(3) If the amount
resulting under subsection (2)(2)(a) or (2)(b) is not a multiple of
$500 it is to be rounded off to the nearest multiple of $500 (with an amount
that is $250 more than a multiple of $500 being rounded off to the next
highest multiple of $500).