Excel/Google Docs Scrypt calculator

[markonegolf]

I am looking for either an Excel, Google Docs spreadsheet or any alternative spreadsheet software containing a mining calculator for Scrypt coins. I know there are sites such as coinwarz and dustcoin that offer online versions, however I am looking for something where I can change EVERY parameter to calculate coins per day (or hour) for new Altcoins; Block reward and time, max coins, diff adjustment time etc. with an option to input your hashrate to give you an estimated coins per day. It would need to have some sort of difficulty adjustment calculator in there too.

Does anyone know if this exists? If not, what are the necessary calculations so I can make the spreadsheet?