open an Excel document and fill it like this:
buy_price | | | ### |
volume | | | ### |
fee | | | 0.2% |
cost | | | =(B1*B2)+(B1*B2*B3) |
profit | | | %### |
sell price | | | =(B4+(B4*B6))/(B2*(1-B3)) |
'###' are variables, you should fill in each time. for example buying 100 (vol) of some coin at 0.00001000
BTC (price) will (cost) 0.00100200
BTC.
if you want 5% (profit) you need to sell it at 0.00001054
BTCif you want the bare minimum price to sell at and that you just get your money back with no profit just set the profit to 0% and in the example above you get 0.00001004
BTC as the price you should sell at.
now you just have to decide how much % profit you want out of each coin that you sell.