This is Pareto’s Principle. 80-20. Very often 80% of your outputs come from 20% of your inputs. For a non-profit, 80% of all money raised comes from 20% of donors. For a coach, 80% of scoring comes from just 20% of your players. Or for a business (as this question suggests), 80% of sales come from 20% of your total customer base. These are your champions. They love you and your product. Dig down and identify who they are and make sure to treat them differently than you treat everybody else!
Source: Pareto’s Principle (cited in too many startup circles to list)
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