Actually, you must know that EUR/USD and GBP/USD mean how much USD is required for exchanging 1 EUR dollar and 1 GBP. Therefore, if EUR/USD is pricing as 1.3661, that means USD 1.3661 is necessary to exchange 1 EUR dollar. 一點既對價係0.0001 USD ( the 4th decimal place) for each EURO. If you have 1 million EUR, the 一點既對價 is USD 100. Same for GBP/USD.