Need some help about MT4

Hi Guys, I am new in forex trading. I had account in UWC at 500 USD. i use MT4 but i have Confused some following thing that

1. I deposit 500 USD. i use 1:300 . but in MT4 when i buy i can't see total amount that how much i buy. In MT4 what is the meaning of this

Margin :27.5
free margin :475.31
Margin level :1832%

what is the meaning of Swap

The Margin 27.5 is the amount you are currently using to open your position (you did not indicate your lot size).

Free Margin is the amount of buying power you have.

Margin Level is a number that represents your total available margin and margin you are using.

Swap - is a credit or debit that will be applied to your account daily depending on the position you are holding. For more information you should google forex swap / rollover.

If you have any more MT4 questions please post them.

Thanks for quickly replay. But I have little bit confused.. can elaborate your answer
I deposit 500$ . Leverage 1:300. That mean my total amount is 500X300=150000$

I bought EURUSD 0.10 at 1.3560 that mean I bought total amount (10000EURUSD X 1.3560) =13565$
My free balance would be = 150000-13565 = 136440$

Then why in MT4 show this –

Balance- 500
Equity- 502.0
Margin-45.20
Free Margin- 453.80
Margin level- 1106.19%
Sorry I am new in forex market. Plz help me

Margin / Deposit is the % of money you are using for trading.

If you use more than 2% you are better off in a casino than in forex trading.