about balance

How to get the highest value of "balance" in the past?please,help me.
[Deleted]
Save (all) history to a file and extract balance from there if you know the starting balance at some point in the past. However, difficult to understand what you really mean.
I want to get it to automatically calculate in my ea.
wmlfs11: How to get the highest value of "balance" in the past?
Could EA Really Live By Order_History Alone? - MQL4 forum