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.
HIGH RISK WARNING: Foreign exchange trading carries a high level of risk that may not be suitable for all investors. Leverage creates additional risk and loss exposure. Before you decide to trade foreign exchange, carefully consider your investment objectives, experience level, and risk tolerance. You could lose some or all of your initial investment; do not invest money that you cannot afford to lose. Educate yourself on the risks associated with foreign exchange trading, and seek advice from an independent financial or tax advisor if you have any questions.

Some of these factors include political stability, interest rates, inflation, terms of trade, public debt and current account deficits. For example, in the case of interest rates, if rates are higher, lenders get a better return compared to those in a country with lower rates; therefore the higher rates attract foreign capital which causes the exchange rate to rise. This is one of the reasons forex traders may look to trade on interest rate announcements from central banks like the US Federal Reserve or the Bank of England.  
Any nation’s central bank, adjusts the rates of interest from time to time in order to contain or curb the inflationary trends. This, in turn, has a definitive effect on the currency market and traders assume trading positions accordingly. The central bank of a country does not act as it is a solid body. The interest rate is increased or decreased based on the vote cast by the members of the monetary policy committee. The number of members monetary committee varies from one bank to another. If the interest rate is cut, there will be more money in circulation. This makes it cheaper. If the interest rate is hiked, its value increases.
When trading forex, you always speculate on whether the price of the base currency will rise or fall against the counter currency. So in AUD/USD if you think AUD will rise against USD, you go long (buy) the currency pair. Alternatively, if you think AUD will fall against USD (or that USD will rise against AUD), you go short (sell) the currency pair.
For this strategy, we will use the Exponential Moving Average (EMA) indicator. The previous week's last daily candlestick has to be closed at a level above the EMA value. Now we have to look for the moment when the previous week's maximum level was broken. Next, a buy stop order is placed on the H4 closed candlestick, at the price level of the broken level.