How to Analyze Stocks on a Bottoms-Up Basis

I'm trying to find stocks on a bottoms-up basis, which is basically what can they earn in the next year? And you know, what's the market paid for a PE? So that's all based on valuation, based on earnings trends. If I can find good stocks that are going to give me on their own bottoms- up, you know, call it 40%, 12 months upside, then I like them.