aY + bZ
where—
a is the amount of $19.50;
Y is the area in square metres of that much of the place to be specified in the permit that is not covered;
b is the amount of $30;
Z is the area in square metres of that much of the place to be specified in the permit that is covered.
(2) For the purpose of subsection (1) a place or part of a place is covered if, at the time of the grant or renewal of a permit, it is roofed or the Minister is otherwise satisfied on reasonable grounds that it is covered.