How should I interpret the metrics provided?

The Overview page of Compensation Management has the following displays:

• Company Metrics: how your company pays in comparison to the market based on job family or experience level
• Salary Metrics: how your company's salaries compare to the market based on location
• Salary Ranges: a chart displaying the names, titles, experience levels, departments, locations, actual salaries, median salaries, and any differences between the last two fields.