I don't know how you can calculate anything from revenue, where i come from (apparently also Warren Buffett) we calculate with profit/earnings. how good is a company to create profit of the invested money. You can have a huge revenue with 0 or loss in profit (earnings). You can't base a price prediction on revenue.
Take this from 2014. this the minimum HHSE should be priced at, (this is only based on earnings) without assets etc. if you take assets etc i would put a calculated price at 0.09 as minimum. and this again is without any forward looking revenue/profit/ etc. we cant calculate with unsure predictions when we calculate a stock price based on fundemantals (ALONE)