Before you Trade CFD, you should also Calculate Your Costs:

Spread
The difference between the purchase price and the selling price is defined as the spread (differential). This value is shown as a number of basic points within the listing.

Example 1:

The spreads on UK 100 displayed is 1.0, calculated by subtracting 6447.7 (purchase price) 6446.7 (sale price).

Example 2:
Using GBP / USD as shown in the second example, if you decide you want to buy, you buy at 1.65373. If the market is moving in your favor, would you start to get profit from a movement of at least 0.9 points?

Using GBP / USD as shown in the second example, if you decide you want to buy, you buy at 1.65373. If the market is moving in your favor, would you start to get profit from a movement of at least 0.9 points?