@donbarkman If it is confusing to you then I'll want to address that in the next version to make it less confusing, thanks for that feedback. The math is not percentages of percentages, but I see what you may be referring to. 15% may be referring to the "15-20% develop 1 or more of the following Complications, usually starting with a Phlegmon", that's denoting the start of the 15 to 20% of ALL cases that are Complicated, as described in the Overview. Then from there, the percentages in the colored boxes are the percentage ranges that present with that specific Complication. The percentages between those colored boxes that are overtop of arrows identify percentages that move from 1 complication to another. But not everyone runs completely through every box, some can skip and present with a Complication further "down" the flow-chart. For example, the "Arrow" text between Plegmon and Contained Abscess says "15%-20%¹ progress to Contained Abscess despite antibiotics; others skip Phlegmon & present directly with a Contained Abscess." So 15-20% of those with Phlegmon progress to Contained Abscess, and some patients present with Contained Abscess directly. Now, they probably had a Phlegmon, but when they presented at a facility it was a Contained Abscess. I hope that helps, but I'll ponder a way to explain it more clearly in the next update. Is the confusion on the percentages why this is disheartening for you, or is it something else? Thanks again.