Forex Robot/Expert Advisor - the behaviour of Forex Transporter

Hi all forex followers,Pls look at below image for the reason I always advise to set your lot size according to your account balance. The active trade is losing money ups to USD$80, sometimes it might go up to -$100. If my account balance is small, I will be hit margin call and the active trade will be closed ending I suffer the loss.Now we back to main topic -  the behaviour of Forex Transporter