(1) If section 118 - 245 applies to a * CGT event, the amount of the * capital gain or * capital loss that you would have made apart from this section from the CGT event is increased by an amount that is reasonable having regard to the following:
(a) the extent that the * dwelling was not a main residence for the relevant period;
(b) the extent that the dwelling was used for the * purpose of producing assessable income during the relevant period.
(2) In determining what is a reasonable increase, have regard to the principles in this Subdivision applicable to * CGT events happening in relation to a * dwelling or your * ownership interest in it.