I posted a simple Excel spreadsheet in the Telegram messenger for everyone, but I think it would be better to post it here.
It will take all your BUYs on a coin, and let you pick a % gain, and it will tell you the sell point for that. It takes into account the Poloniex fees as well. So you'd go to My Trades on Poloniex, and copy and paste the text into the sheet... Text like this:
2017-04-11 12:45:31 Buy 0.00397950 10.00000000 0.03979500
2017-04-11 12:44:29 Buy 0.00397950 0.12756235 0.00050763
2017-04-11 12:42:35 Buy 0.00397950 13.25420355 0.05274510
2017-04-11 10:30:53 Buy 0.00398421 0.76653741 0.00305404
Then just set the % and then you can copy the SELL AT price. These instructions are on the Sheet too.
This sheet is free for all to use. Please let me know if you find any errors, or make improvements!
Kevin Crane