You really have to understand how options work to really "get" the logic behind it.
"1 option lot" is worth 100 shares of the underlying stock. You buy/sell your option for a premium which is anywhere from $.05 to a couple bucks.
If the premium is $.05, then you front $5.00 + comissions for the option.
If the premium is $2.50, then you front $250 + comission for the option.
In the first example if you buy 10 contracts you front $50.00.
In the second if you buy 10 contracts you front $2500.
Equity requirements get really messing depending of you are long the option and covered or not, so it's really hard to figure that into the math.
Actual profits can vary widely too, but I'll give you a rough idea of how you can score big on options.
Say you have a really good feeling that company X is going to explode in price after their next earnings call. Right now their stock is trading at $25 a share.
You go out and buy 10 contracts at a strike price of $25 for $.50 per option. You have to front $500 + comission for them.
After the earnings call profits are all time high, and the stock shoots up to $32 a share.
You can either exercise or close out your option(which most do) based on the current price.
So your profit looks like this now: $7 a share (32 - 25) x 1000 = $7000. Take away your premium of $500 and commissions and you are looking at around $6500'ish in profits.
Not bad for a $500 fronting of cash. To make that much in standard trading you would have needed to front $25,000 (assuming you weren't buying on margin).
These guys were doing similar things but they were trading in larger lots (like 15-20) but they were talking gains only in single digit % (1%-2%) but with the leverage they had through the options it added up to decent cash.