Hello, the balance is only related to the payment form. If your initial capital is 100, if you close 1 bill and make a profit of $5, and still hold 1 bill and make a profit of 10, then your balance is 105, but your equity is1.

In other words, as long as there is no liquidation operation, the balance will not change, and the rights and interests will change at any time.

There is also the problem of positive and negative values you mentioned. I suspect it is Swap. Now most of the MT4 platforms are translated into "inventory fees".

I hope it helps you.