I assume they are referring to "revenue", when they mention...

I assume they are referring to "revenue", when they mention "turnover"? My googling tells me that turnover has various definitions. Assuming revenue, say a business has a revenue of just under $50M, from that say $5M earnings before tax. Beforehand they would pay $1.5M now they will pay $1.25M, leaving a NPAT of $3.75M.

The following financial year the business grew with $52M revenue and $5.2M earnings before tax. As they are now over the $50M threshold they will pay the full 30% tax rate ($1.56M), leaving a NPAT of $3.64M, worst off than the previous year.

Is there anything in the legalisation to address this dead zone?