This document discusses key marketing metrics that should be measured and improved. It identifies the four main metrics as income, expense, audience, and action. For each metric, it provides examples of specific measurements that can be tracked, such as sales dollars, marketing budget dollars, database size, and conversion rates. The document also provides examples of calculations and comparisons that can be done using these metrics to analyze performance and identify areas for improvement, such as increasing audience sizes, click through rates, and conversions.
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