With only a single financial statement showing two periods, fundamental analysis is difficult. You are going to have to make a LOT of assumptions to determine a fair price. Is the cash flow in the period normal or abnormal? Will the growth in cash flow in that period be sustainable? What factors might hinder future growth? Are there a lot of non-cash activities that would help or hurt the company in the long run?
Another method is by comparing multiples. Look at ratios such as price/earnings (P/E), price/sales, and price/book to see if the stock appears to be "undervalued" relative to other companies in the same market. You still need to be cautious, though, since the denominator in these ratios could be unsustainable (earnings or sales could be inflated due to uncommon activity) or there are other factors not accounted for in these ratios to justify the high or low price.
I believe I am just guessing
You are - but so is everyone else. Bottom line - with only that much information, your guess is as good as anyone else's