A lot? PT workers drag the figures down considerably, so let's concentrate just on FT wages.
Mean average for FT workers = £31,323 but that figure is artificially raised by ultra-high earners. So, the median average wage is £25,123. So 50% of FT workers earn below that.
£31,759 would get you into the top 25% of FT earners and £44,881 is enough to get you into the top 10%. Earn £118,027 and you're in the top 1%, with only 0.6% of people in the £150,000 where tax is 50%.
And, of course, 40% is only on earnings over £37,400, not on the whole salary (it might be obvious to you but I know some that don't realise that).
When you actually see those figures, it makes you wonder why the housing bubble didn't burst earlier. I actually worked in mortgages in 1990 as the first housing crisis hit. The amount of repossessions were incredible! Back then, interest rates were 15%. So, if you currently pay 5% on your £100,000 25-year mortgage, your payments would rise from around £590 per month to £1,290. Could you afford it?
This recession was far deeper but the pain was much less due to plugging money into the economy (low-interest rates and govt debt). That's why these cuts scare me. The economy is government-led. Cutting so fast and deep is just simply the wrong move (just ask the pre-election Lib Dems, the Bank of England or the IMF). And all we achieve is the equivalent of 2p on the basic rate of income tax, i.e. £20 in every thousand. Not too bad when you consider the basic rate was 25% not too long ago.
Oh, and why are cutting debt over 4 years and not the recommended 10? If the election is in 5 years time and we're coming through a terrible time into more prosperous years (and that's a big Osboune gamble - no guarantees), then you may just vote for the current govt. If we're only halfway through a much lesser pain, then you may just be tempted to vote for someone else.
Purely a political gamble.