Bid price is the best price at which a market maker is willing to buy a currency.
Ask price is the best price a seller is willing to accept for a currency.
High is the highest price registered in the last 24 hours.
Low is the lowest price registered in the last 24 hours.
Volume is the amount of currency that trade hands from sellers to buyers as a measure of activity.
Change is the difference between the current price and the last trade.