The City of Perth's annus horribilis has continued on Wednesday with the sacking of chief executive Gary Stevenson with two years to run on his five-year contract.

But despite the ongoing issues around her travel schedule and dealings with BHP, mayor Lisa Scaffidi has denied Mr Stevenson was made a scapegoat for a difficult 2015 for the city.

A report on Lisa Scaffidi was finally released on Parliament on Tuesday.

"The issue is completely separate to that issue and the two are not related at all," Ms Scaffidi told media on Wednesday afternoon.

"It is what it is and you can add it up and cut it up and slice it and splice it however you wish to, but today has been by mutual consent.