Knowing the transaction costs associated with your trading.
What are forex spreads?.
When you begin trading, you’ll notice that you’re given a ‘bid’ (or ‘sell’) price and an ‘ask’ (or ‘buy’) price. The ‘bid’ is the price at which you sell the base currency, and the ‘ask’ is the price at which you buy the base currency. The difference between these two prices is what we call the spread.