You can find out your value in Sim really easy but i wanted to build a spreadsheet and plug in some data to really find out what was happening, there was to items i could not find any current market data on so i have left them at 0. The Police Academy and Powder Distributor are blank so if any anyone know what they are please let me know as for all the other values i have used the lowest asking price on https://dcity.monstermarket.io/
Looking at the data is kinda wild and didnt think it was worth $1200+ and it pays out the equivalent of $2.50 a day in SIM production but i expect this to rise as people are starting to buy into this economic simulator and i also expect to see card prices rise.