Hi Wynsum,
I don't think you need to combine two IF statements, one seems to do fine with this problem. The false result of your first test E12>I12 would be the true result of your second test, so one IF will do.
Just insert this formula in cell I13:
=IF(E12>I12,I12,E12)+(C13*0.5)
Cheers,
Bookmarks