What is their relationship?
Why do people say leverage can multiply your profit/losses?
I always thought I use my balance to support my trade. Does leverage makes a big difference?
Never to late to understand it. Of course it makes a huge difference. If there was no leverage (1:1) you would need at least 100,000 € in your account to trade a standard lot of EURUSD.
For the details please do some researches, there are plenty resources about that on this site or Internet.
What is their relationship?
Why do people say leverage can multiply your profit/losses?
I always thought I use my balance to support my trade. Does leverage makes a big difference?