Arithmetic on today's supply, not a forecast. It assumes nothing about whether Sui could attract that much money.
A coin's market capitalisation is its price multiplied by the number of coins in circulation. Sui has 4,138,426,879 SUI in circulation at $0.9048 each, which is $3.74B. Holding that supply still and putting Ethereum's $282.25B in its place gives $68.2018 per SUI.
Sui would have to take on $278.5B of new money to get there. A 75.4x move is large: it happens, and it usually needs the whole market to grow instead of one coin to take share from another.
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 SUI at that level, which is the part that actually decides a price.
$68.2018 per SUI. That is Ethereum's current market capitalisation of $282.25B divided across the 4,138,426,879 SUI in circulation.
75.4x. Sui trades at $0.9048 today and Ethereum's market cap is $282.25B against Sui's $3.74B.
No. It is one division: Ethereum's market capitalisation spread over the supply of SUI that exists today. It assumes nothing about whether Sui 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 $282.25B of market cap spread over more coins gives a lower price per coin. This uses the 4,138,426,879 SUI in circulation now.