3) You'll need to merge the databases on the base you want to destroy with the fleet attacking. At the bottom of each column type AVG(A1:A47), AVG(B1:B47).... Once you do that, you make a chart of the averages of each column (x values) and the solar data from the star system you are in (you may have to input this data manually. While making the chart, make sure you click "Add trendline." If the line goes through more than 60% of the points your fleet should hit on that turn. Keep doing this for as many turns as it takes to destroy the base.