The currency amounts shown are based on the daily exchange rate. This is an approximate value based on the conversion from the chosen currency to the current exchange rate compared against GBP (UK) Sterling. The final transaction amount may differ slightly on your credit card statement based on your bank's conversion rate at the time of the transaction and if a charge is levied by the bank.
Any opinions expressed on this website are not necessarily those of the Webmaster - they might be from the Webmaster's mum, and boy, she's certainly got a few of her own and has no qualms liberally sharing them with anyone who cares to listen - but then again, I suppose the Webmaster has a few of his (or her) own, because he (or she) can be quite gobby at times, to be fair.