Arithmetic on today's supply, not a forecast. It assumes nothing about whether Dogecoin could attract that much money.
A coin's market capitalisation is its price multiplied by the number of coins in circulation. Dogecoin has 156,682,809,004 DOGE in circulation at $0.07763 each, which is $12.16B. Holding that supply still and putting Stellar's $5.9B in its place gives $0.0376589 per DOGE.
Dogecoin is already worth more than Stellar. Moving to the smaller cap would take DOGE down to $0.0376589, which is 0.485x of what it trades at now.
Supply is held still, and in practice it moves: coins are minted, burned and unlocked, and every one of those changes the price a given market capitalisation implies. The figure also says nothing about whether the money exists to buy DOGE at that level, which is the part that actually decides a price.
$0.0376589 per DOGE. That is Stellar's current market capitalisation of $5.9B divided across the 156,682,809,004 DOGE in circulation.
0.485x. Dogecoin trades at $0.07763 today and Stellar's market cap is $5.9B against Dogecoin's $12.16B.
No. It is one division: Stellar's market capitalisation spread over the supply of DOGE that exists today. It assumes nothing about whether Dogecoin could attract that much money, and it holds the supply still when in practice supply changes.
It sets it. Market cap is price times circulating supply, so the same $5.9B of market cap spread over more coins gives a lower price per coin. This uses the 156,682,809,004 DOGE in circulation now.