When the rate
has changed, for example USDJPY = 121.44 to USDJPY = 121.45 or GBPUSD
= 1.6262 to 1.6263, they say that the rate has moved 1 point. As
it follows from the information above, yen in this example has DEPRECIATED
by 1 point, but the pound has APPRECIATED, also by 1 point.
While watching the charts, you should keep
in mind that only euro (EURUSD), British pound (GBPUSD) and Australian
dollar (AUDUSD) charts reflect real movements of the rates of these
currencies (that is, chart going up, means increasing price), as
growth (that is, charts moving up) mean decreasing rates (prices)
for the other currencies.
Sometimes quotes are given as a pair, for
example 121.44/49. It is a BID/ASK pair: the first number is BID,
then the two last figures of ASK. Knowing that ASK is always higher
than BID and that the spread is under 100 points, the full ASK real
prices can always be defined. In this example ASK = 121.49.