Challenged myself a bit with this one because it was a problem that was already familiar to me... so I tried to build the entire workflow to give me the correct answer WITHOUT running it until the very end. Sort of a "blind build", the goal being "one hit of the Run button = success". Was able to do it for Objective 1 with only one extra run (forgot to multiply my percentages by 100)... and then manged to make it to the right solution with just one run for Objective 2 (having learned my lesson with the percentages already!)