Note that this is on the Chinese server - so I don't know if the USD translation is the same.
Most of the time it's (USD per 'plex' divided by ISK to sell a plex on the market) to get the price in USD per ISK. a 'plex' is a 30 day pass to play the game, and is also an in-game item suitable for sale.
The Chinese server is totally distinct from the RestOfWorld server - no shared space / market / anything. So I have no idea what the price of ISK is on the Chinese market, or if they even support that kind of trade.