Westpac Banking Corp (A price target of the ASX: WBC ) share price can be equal parts art and science. That said, the research and valuation process is arguably the most crucial part of successful investing and should not be neglected.Let’s take a look at how we could value WBC shares.Westpac is the second-largest Big Four Australian bank. Headquartered in Sydney, Westpac’s primary role in the Aussie financial system is financing homeowners, investors and individuals (via credit cards and personal loans). I ...