I've noticed on the dashboard page, sparkline images appear incorrect at times. It may be that the sparkline image is generated off a different time block than the %change value. In the example image I'm attaching, you can see clearly that the starting price is much higher than the ending price. This would make me think the sparkline should be red instead of green. Hovering over this shows a tooltip that points at a positive % change value even though the image start & end values seem to disagree with this.