What is a good price-to-book ratio and how can it be used to evaluate a company's financial health?

A good price-to-book ratio is typically considered to be below 1. It can be used to evaluate a company's financial health by comparing the market value of a company's stock to its book value, which is the value of its assets minus its liabilities. A low price-to-book ratio may indicate that a company's stock is undervalued, while a high ratio may suggest that the stock is overvalued.