Basicaly 1 mi iota = 1 coin
             1 Gi iota  = 1000 coins
             1 ti iota    = 1000 000 coins
When compared to traditional coins,not in price though

Anything below Mi iota like Ki iota would be the same thing as satoshis,just fractions

But only because its the Mi thats being traded
 
If the price was for 1 IOTA only, the price would be much higher

It doesnt