1. What is Percentage Per Day?

Percentage Per Day calculates the daily growth rate between two values over a specified period. It shows the consistent daily percentage change needed to go from a starting value to an ending value over a given number of days.

2. How Does the Calculator Work?

The calculator uses the compound growth formula:

Where:

• \( \text{Start} \) — Initial value (unit)
• \( \text{End} \) — Final value (unit)
• \( \text{Days} \) — Number of days between start and end

Explanation: This formula calculates the constant daily growth rate that, when compounded daily, would transform the start value into the end value over the specified period.

3. Importance of Daily Growth Rate

Details: Understanding daily growth rates is crucial for investment analysis, business performance tracking, population studies, and any scenario involving compound growth over time.

4. Using the Calculator

Tips: Enter the starting value, ending value, and number of days between measurements. All values must be positive (start > 0, end > 0, days ≥ 1).

5. Frequently Asked Questions (FAQ)

Q1: What does a negative percentage mean?
A: A negative percentage indicates a daily decline or depreciation rate rather than growth.

Q2: How is this different from simple average?
A: This calculates compound growth rate, which accounts for the effect of growth on previous growth, unlike simple averages.

Q3: Can I use this for monthly or yearly calculations?
A: Yes, but ensure the time period is consistently in days. For monthly rates, convert months to approximate days.

Q4: What are typical percentage per day values?
A: Values vary widely by context. Investment returns might be 0.01%-1% daily, while bacterial growth could be much higher.

Q5: How accurate is this calculation?
A: This assumes continuous compound growth. Real-world scenarios with variable rates will have different actual daily performances.