Depicted as yellow/orange/red bars, the impact is a basic indicator of the potential move a data release might trigger on currencies. Shall a bar be red and long, market observers expect this data to have great probability to move the Forex market. Shall this bar be yellow and short, the probability is viewed as low. In orange, we’re just in between.

If the indicator can establish a time when there's an improved chance that a trend has begun, you are tilting the odds in your favour. The indication that a trend might be forming is called a breakout. A breakout is when the price moves beyond the highest high or the lowest low for a specified number of days. For example, a 20-day breakout to the upside is when the price goes above the highest high of the last 20 days.

The chart above shows a representative day trading setup using moving averages to identify the trend which is long in this case as the price is above the MA lines (red and black). Entry positions are highlighted in blue with stop levels placed at the previous price break. Take profit levels will equate to the stop distance in the direction of the trend.
If traders are positive on the prospects for the Yen, they would expect the number on the right to go down – i.e. the Yen would be getting stronger against the Dollar. Traders would be buying less Yen with a Dollar as the Yen got stronger. Similarly, if the Yen was expected to weaken, forex traders would expect the Yen number to go up, reflecting the fact that the dollar could buy more yen.