Before I run out to buy new batteries for my HP calculator, I don't see the buy at 10.98 and selling at $11.00 equals a 10% gain. So maybe the $11.00 really is 11:00 AM? Well a 10.98 move to 10.40 (the 11:00 price) is a loss, not a gain. Confusing. I'm off to get batteries.... My calculator...