When you trade in the foreign exchange spot market (where trading happens immediately or on the spot), you are actually buying and selling two underlying currencies. All currencies are quoted in pairs, because each currency is valued in relation to another. For example, if the EUR/USD pair is quoted as 1.2200 that means it takes $1.22 to purchase one euro. 
Finally, it is important to note that in leveraged forex trading, margin privileges are extended to traders in good faith as a way to facilitate more efficient trading of currencies. As such, it is essential that traders maintain at least the minimum margin requirements for all open positions at all times in order to avoid any unexpected liquidation of trading positions.
The use of leverage basically exacerbates any sort of market movements. As easily as it increases profits, it can just as quickly cause large losses. However, these losses can be capped through the use of stops. Furthermore, almost all forex brokers offer the protection of a margin watcher – a piece of software that watches your position 24 hours a day, five days per week and automatically liquidates it once margin requirements are breached. This process ensures that your account will never post a negative balance and your risk will be limited to the amount of money in your account.
With Equivolume, you can plot price and volume activity on a single graph, instead of having volume added as an indicator on the side. This tool draws the bars following their traded volume at a precise point in time (the wider the bar, the bigger the volume). That creates a clear visualization of the volume increase or decrease of an asset’s diagram. A very handy feature for those strategies whose key factor is volume. How to change your table into Equivolume