Calculating current leverage in metatrader

Hello,

I'm looking for formula to calculate the current leverage in use. I think this is really simple question, I just can't figure out if I'm correct or not

I know that maximum leverage is AccountBalance()*AccountLeverage()

Therefore I would assume that if my current used margin is AccountBalance()-AccountFreeMargin()

The leverage would be
(AccountBalance()-AccountFreeMargin())/AccountBalance()*AccountLeverage()

Is the above correct?

Also what is difference between AccountMargin() and AccountBalance()-AccountFreeMargin()? I'm a bit confused about the functions around this.

thanks in advance!

This works for me:

int start()
{
test(0.1);
}

void test(double lots)
{
double equity = AccountEquity();
double lotValue = MarketInfo(Symbol(), MODE_MARGINREQUIRED) * AccountLeverage();
double positionValue = lots * lotValue;
double trueLeverage = positionValue / equity;

Print("symbol=", Symbol(), " lots=", lots, " lotValue=", lotValue, " positionValue=", positionValue, " equity=", equity, " trueLeverage=", trueLeverage);
}