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Beginner to Intermediate
⏱️ 15 minutes
Comprehensive guide covering all aspects of percentage change. Learn how to measure growth, decline, and variation across finance, business, science, and everyday scenarios.
What You'll Learn:
- The percentage change formula
- When to use percentage change
- Real-world examples from 5 industries
- Common mistakes to avoid
- Step-by-step calculations
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Beginner
⏱️ 12 minutes
Master percentage increase for business and investing. Perfect for analyzing sales growth, price markups, investment returns, and salary raises.
What You'll Learn:
- Percentage increase formula
- Markup vs. margin calculations
- Compound increases over time
- Business applications and examples
- Investment gains tracking
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Beginner
⏱️ 10 minutes
Learn to calculate discounts, losses, and reductions. Essential for retail discounting, cost reduction analysis, and understanding investment losses.
What You'll Learn:
- Percentage decrease formula
- Discount calculations for retail
- Cost reduction analysis methods
- Investment losses and depreciation
- Sale price calculations
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Intermediate
⏱️ 12 minutes
Understand symmetric percentage difference vs. percentage change. Critical for scientific comparisons, A/B testing, and when the order of values doesn't matter.
What You'll Learn:
- Percentage difference formula
- When order doesn't matter
- Scientific applications and examples
- A/B testing analysis techniques
- Difference vs. change distinctions
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Intermediate to Advanced
⏱️ 15 minutes
Master compound annual growth rate for investments. Essential for evaluating long-term investment performance and comparing multi-period growth rates.
What You'll Learn:
- CAGR formula and calculation method
- Multi-period growth analysis
- Investment performance evaluation
- CAGR vs. average return differences
- Real portfolio examples and case studies