One of the core principles of marketing is the 80/20 rule. This concept comes from the Italian economist Vilfredo Pareto who emphasized that 20% of the population controls the majority of the wealth. In marketing, this translates a bit differently. About 20% of your strategy is going to produce 80% of the results.
https://www.e-marketingassociates.com/blog/using-the-80-20-rule-for-social-media