By pretty much anyones standards that is a lot of money to make in one day.
I beg to differ. I would think a multi-millionaire living life to the fullest in Monaco would probably not care about making just 400 to 600 pounds, or even losing it. Same reason why tax has a bigger effect on individuals with lesser incomes than those with higher incomes.
There's no need to brag, OP... Great, if you made £400-£600/day
That's £8000/month (Over 20 days) or £72,000/annum. Every one knows that's quite a lot of money...
Exactly. It's nearly 3 times the average UK salary. Of course it's a lot of money. If you think otherwise you're in for a shock when you leave college/university!