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如何计算Doubling Time

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A doubling time calculator uses the Rule of 72 (or exact calculation) to determine how long it takes for a quantity to double at a constant growth rate. At 6% annual growth, 72 ÷ 6 = 12 years to double. Applies to investments, population growth, bacterial growth, and any exponential process.

分步指南

  1. 1Apply Rule of 70 or exact formula
  2. 2Divide by growth rate
  3. 3Calculate time to double

例题解析

输入
5% annual growth
结果
~14 years to double
Rule of 70: 70/5 = 14

常见错误注意事项

  • Not double-checking results
  • Ignoring edge cases

常见问题

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