* _Formula:_ (Time spent on social media * Hourly salary) / Number of conversions through social media 
 * _Example:_ Your social media efforts resulted in 10 new e-book sales. If you spent 20 hours on social media, with an hourly rate of $30, your social cost per conversion is $60.

 * _Action Steps:_
      * Analyze if this cost is sustainable given the value of each conversion.
      * Explore ways to streamline your social media tasks.
      * Focus on platforms that yield the best results.