Hi Husk, to give an example:
Say your next buy comes at $2 and you buy 100, which makes $200. I go for 10% gain in $ and want to keep 10% of those shares too, so I want to sell 90 shares for $220 and $2.45 is my target for those 90. If you want to (I did), you could add the transaction costs. The AIM was to accumulate shares! I succeeded (but mostly down)!
Regards,
Karel