The Rule of 72 stems from the mathematics of exponential growth. It’s not perfect—its accuracy wobbles with very high or very low interest rates—but for rates between 4% and 15%, it’s ...

We show the detailed math below, and it’s confirmed by public ... As the name suggests, the Rule of X is an adjusted form of Rule of 40, taking composition (and weighting) into account.

Calcea Johnson via MMA In December 2022, a high school in Louisiana challenged its students with a bonus math question that ... the 2,000-year-old rule that explains the relationship between ...