Growth/Decay Factor Formula:
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The growth/decay factor represents the multiplier applied per time period in exponential growth or decay scenarios. It quantifies how much a quantity increases (growth) or decreases (decay) over multiple time periods.
The calculator uses the formula:
Where:
Explanation: The formula calculates the cumulative effect of applying the same growth or decay rate over multiple time periods.
Details: Growth/decay factors are essential in finance (compound interest), population studies, radioactive decay, and any scenario involving exponential change over time.
Tips: Enter the rate as a decimal between 0 and 1 (e.g., 0.05 for 5%), time periods as positive numbers, and select growth or decay type.
Q1: What's the difference between growth and decay?
A: Growth involves increasing values (1 + r), while decay involves decreasing values (1 - r) over time.
Q2: Can the rate be greater than 1?
A: No, the rate should be between 0 and 1 (0% to 100%) for meaningful results.
Q3: How is this different from simple interest?
A: This calculates compound growth/decay where each period's change is based on the current value, not just the original amount.
Q4: What if time is not an integer?
A: The calculator handles fractional time periods, useful for partial periods or continuous calculations.
Q5: Can this be used for negative rates?
A: Negative rates would indicate decay, so use the decay option with positive rate values instead.