Boy man, you really are challenged in thought. People wanting to make money on a stock WHEN THEY SELL want that sale at an increased cost basis., said no one ever! They want to sell the absolute cheapest they bought (low cost basis) at a higher price later, that's why an investor dollar cost averages and sometimes sells high cost shares, to lower their cost basis. The JPS crowd wants a higher price to unload their higher priced shares in the hopes of buying them back when LOWER, hence, they lower their cost basis.
Of course, you are probably buying on the way up and selling the high cost shares cheaper, on the way down. Lol, this explains a lot!
Now wonder you can't make money on this. Your math you think 2+2-2=6