At the March state election, Colin Barnett's Liberal party was decimated by a resurgent Labor to record a 16 per cent swing against it, cutting its numbers in the 59-seat lower house to just 13.

Campaign Capital principal Daniel Smith said financial and employment insecurity were key drivers behind a mood for change within Mr Porter's electorate.

Jobs

"The federal seat of Pearce takes in a number of the outer suburbs that swung heavily at the recent state election, where voters were attracted to Mark McGowan's strong message on jobs," Mr Smith said.

"Our poll found people are doing it increasingly tough in the post-boom environment, with 46 per cent of people saying they are worse off compared to the same time last year, and only 9 per cent saying they are better off."

Christian Porter's support has plummeted in the Perth seat of Pearce. WAOP

But both Mr Turnbull and Opposition Leader Bill Shorten are unpopular, with 51.1 per cent of respondents disapproving of Mr Turnbull and 51.7 per cent disapproving of Mr Shorten.

The poll also found 61.1 per cent of respondents supported the Turnbull government's decision to abolish and replace the 457 skilled migration visa, including 68.3 per cent of Liberal voters, which was higher than the 52.3 per cent of Labor voters who supported the move.


The poll showed more voters cared about big companies creating jobs than paying higher taxes, with 64.8 per cent saying creating jobs for local people was a more important benefit company's can deliver compared to 17.8 per cent who believed taxes were more important.

But 65.2 per cent of respondents felt big companies were not doing enough to create local jobs and support local business.

The Coalition's vote has also melted down since last July's federal election. WAOP

"The argument that a more competitive company tax rate would attract industry to Australia and create jobs is being undermined by a public perception that big companies don't actually do enough to create local jobs," Mr Smith said.

Nearly half of respondents, or 45.9 per cent, said they were financially worse off compared to the same time a year ago. The poll found 62 per cent of respondents oppose the Fair Work Commission's decision to cut penalty rates.

The Liberals have held Pearce, which straddles semi-rural suburbs, working-class outer suburbs and suburbs straddling a coastal marina, since at least 1990.