So I made some adjustments as you mentioned, Meni... I'm not sure that clears up any confusion, just seems to be trading it for different confusion.
So we have a 95% block, which is good luck, but a 13% block which is bad luck. Seems like we should still have some sort of positive/negative list as to if we are under or over expected shares (difficulty).
I don't think it's that important to know if it's above/below difficulty. "Luck" gives the connotation of making comparisons in the percentile space. Then average luck is 69.3% of the difficulty, which is the 50% percentile (median). Above 50% should be green, below should be red (currently it looks like the midpoint for colors is about 40%).
Anyway, I think it will look better if all numbers in the column will be in the format ##.##%, even if it has leading or trailing 0's.