US829 to UK pounds?

It depends on the exchange rate you are offered on the day, so it pays to shop around.

The average tourist exchange rate for March 4 2010 was $1.551, giving an exchange of $829 ÷ 1.551 = £534.49

The best rate I could find was $1.4578, giving an exchange rate of $829 ÷ 1.4578 = £568.65