Drawdown

 
Hi,
any one could explane difference between maximal drawdown and absolute drawdown?
In some backtest they are very different and i would like answer to appreciate an EA.
Thanks in advance.
 
Absolute drawdown is the difference between the initial deposit and the smalles value of balance within testing:

AbsoluteDrawDown = Initial Deposit - Minimal Balance
Maximal drawdown is the highest difference between one of local upper extremums of the balance graph and the following lower extremums:

MaximalDrawDown = Max of (Maximal Peak - next Minimal Peak)

 

For example

You deposited $100 and made a loss of $10. Then you made a profit of $30 and again a loss of 20

In this example the maximum Draw-down is $20. But the Absolute Draw-down is $10.

Relative Drawdown mean the average of all the drawdown.