nav_calculator - Personal ROI Calculator
Compute the expected ROI for any CourseHub course based on your salary, hourly rate, and time budget.
nav_calculator
调整参数为 CourseHub 上任意课程计算预期 ROI。
How to Use
- Enter your current annual salary (USD)
- Enter the course price (USD) from the course page
- Enter the course hours from the course page
- Enter your hourly rate (typically salary / 2000)
- Enter the expected salary lift (%) from the course page
- Enter your completion probability (%) based on your motivation and time
Click Compute ROI to see:
- Total Investment: course_price + (hours × hourly_rate)
- Expected Gain: salary × lift × completion_probability
- Net ROI: (gain − investment) / investment × 100%
- Payback Months: investment / (gain / 12)
Default Values
The form pre-fills with reasonable defaults:
- $60,000 baseline salary (US median)
- $200 course price
- 40 hours duration
- $30/hour rate
- 10% salary lift
- 60% completion probability
These defaults yield a ROI of approximately 200% and a payback period of around 3 months.
ROI Interpretation
| ROI Range | Interpretation |
|---|---|
| > 200% | Excellent — high-yield investment |
| 100-200% | Good — solid return expected |
| 50-100% | Moderate — verify completion probability |
| 0-50% | Marginal — consider alternatives |
| < 0% | Negative — high time cost relative to gain |
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