Doubling time
Doubling time: use growth per period. Review the formula, worked example and calculation steps.
Inputs
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Formula & explanation
Doubling periods = ln(2) / ln(1+r/100)
Variables & units
- Growth per period
- % · minimum 0.000001, maximum 1000000000000
Worked example
100% growth per period doubles in one period.
Assumptions
Constant discrete compound growth, not the approximate rule of 72.
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