


SDC: you are over thinking it .... divide account balance by 100. divide account balance by 100.doesn´t work. When I use this value (account/100) and put this in "Alert", it say me the value. But when I use this value to determine the lots in OrderSend ((Account/100) and then divide this /SL), it does not work. The way I said before it does. My question is: using the rule of 3 (Y*X/100), that worked, is the right way, or I can have a problem later? What is the way to obteing % in mql4? 

I think the issue is with your method of calculating the lot size. As SDC says, AccountBalance() / 100 is most definitely 1% of your account balance. 
3517 
SDC: you are over thinking it .... divide account balance by 100. trader201: divide account balance by 100 doesn´t work.
Your question is in your title What is the correct way to get the 1% of the account?and dividing the balance by 100 will give you 1% So if you want to find out X% Balance/100*X 
What is the correct way to obtain a percentage in MQL4?
I see rule of 3 it work (Y*X/100), but is this the right way? (I just want to confirm).
When I use "X = y%", have the problem of two "=" signs (X=X=Y%;). It does not allow to write "X*1%" . Soo, What is the correct way to obtain a percentage in MQL4?
Thank you in advance
trader201