From the East Asian Forum:
“Almost a decade of centre-right rule came to an end on 21 May when former prime minister Scott Morrison’s Liberal Party–National Party coalition was defeated by the centre-left Labor Party, which now holds office at the federal level for the first time since 2013 under the leadership of Prime Minister Anthony Albanese.
“Despite Labor only winning around a third of the first preference vote, Australia’s system of preferential or ‘instant-runoff’ voting means that the votes of lower-ranked candidates are redistributed, according to voters’ preferences, to the top ranked candidates until a majority is achieved. After distribution of preferences Labor won a decisive victory with a big swing in its favour across all constituencies except Tasmania. The swing to Labor in the resource-rich state of Western Australia was a massive 12–13 per cent.