I've created 3 pivot tables and one regular chart with data from the first pivot table. I want to add the other two as new series' to the chart but I'm doing something wrong because the option to add under Select Data (Legend -series) is greyed out. Please help me figure out what I am missing when I created the pivot table and regular chart. Look at the % Comp Curve tab.
Solved by I. J. in 28 mins