Buying and selling quantity discrepancy

Hi everyone!

I'm pretty new to the world of crypto and Binance and there's a thing, when I make an order, I can't figure out. If, for instance, I buy 0.035 of a certain coin sometimes it happens that when I want to sell it I move the slider right up to 100% but the amount is 0.034 and it leaves me with like 0.00095something of that coin in my wallet. It happens because of the fee, but how can I work around it so that I don't have to put in a higher selling price to compensate for the lesser quantity of coin it allows me to sell?

Thank you very much.