30. What is the allocation calculation for political parties to receive public funding?

Electoral and Political Financing: the Commonwealth Regime and its reforms, 20 March 2012.

https://www.aph.gov.au/About_Parliament/Parliamentary_Departments/Parliamentary_Library/pubs/BN/2011-2012/ElectoralFinancing

The amount to be paid is calculated by multiplying the number of votes obtained by the current election funding rate. This rate is indexed every six months to increases in the Consumer Price Index.  The Commonwealth Electoral Legislation Amendment Act 1983 introduced public funding for campaigns.  Parties and candidates were required to file election returns making a claim for payment.  The Commonwealth Electoral Amendment Act 1995 removed the obligation for electoral returns thus removing the link between funding and reimbursement.