I wanna buy some CPChain (CPC) but I'm looking at https://www.livecoinwatch.com/price/CPChain-CPC
And I notice the huge difference in ETH, BTC and fiat pair.

Why is this? ETH has a +70% change in the last 30 days.
While BTC and usd only have about a +4% change.

Here is the image: http://imgur.com/a/gQGLzw4

Now, another "problem"... I bought some ETH at $260. (Thought I bought the bottom😂) so now that's a lot less worth...
The ETH value of CPC keeps going up, while USD keeps going down. Do I buy now before eth value goes up again or what ? I'm confused. I have no idea what to do!