So you get a double whammy. Not only would the richest 20% contribute less than the poorest 20%, but it's also a significantly smaller impact on their overall income.
The poorest 20% of Australians will contribute $2.9 bn to repairing the budget in the next four years, while the richest 20% will contribute just $1.8 bn. The study took into account the many cost-of-living factors and benefits, including the effects of repealing the carbon tax.
Since the richest 20% earn 10.8 times the amount as the poorest 20% , this means that the rich are contributing just 5.7% of the amount that the poor are contributing, as a factor of their income .
In other words, this is a budget to benefit the rich at massive cost to the poor. Or, as Tony Abbott would put it, "striving to be fair."
 (1.8 / 46.5) / (2.9 / 4.3)
PM rejects analysis showing poor worst hit