Sort:  

it's the last 24h, if you hovering with your mouse over the chart, you can see the exact price. The 1,7 and 30 day is a good idea, lets see if i can do it....

But the exact price at exactly when? It could use a timestamp along with the price on-hover.

ok, I will see what I can do...

I did some changes, have a look...

Definitely needs some indication of scale