I don't like to let the non-fiat float, it makes it possible to say anything. "Your BTC is worth 80% of what it was before, but since you are only 20% invested

I don't like to let the non-fiat float, it makes it possible to say anything. "Your BTC is worth 80% of what it was before, but since you are only 20% invested in BTC your BTC value has gone up 20%!"