Hello

I do not wish to leave a lot of cash in the broker accounts but only virtually the necessary sum for the transaction.
Let say I wish to put a trade in which my danger is 100$ and the possible payoff is 200$.
The question is: How would I put the trade for 100$ without needing margin call when my account balance is 200$? .
My agent is OANDA and there's a leverage factor between 10 percent and 100%.

Due