I have three columns, first is order number, then entry date, then invoice date. I would like to be able to plot the total number (count) of incoming orders (entry date) against the total number (count) of outgoing orders (those with an invoice date) by week. I don't think the order number is important in this case I mention only for reference. I feel like I keep getting close, but I'm not quite getting there. It seems like it should be fairly simple. Can anyone provide a little guidance? Thanks!