You're trending a row's numbers as-is. To AA, the "All Visits" column in your table is just another metric column. It has no special meaning in visualisations.
A calculated metric might help you. Instead of using "Page Views", create a calculated metric using the formula "Page Views / Page Views Total". (For the denominator, you'll need to click the metric's gear icon, then choose "Grand total".) If you use this calculated metric, then you don't need the "All Visits" segment.