Stock Calculator
Calculate stock profit, return on investment (ROI), and break-even price for your investments
Calculate Stock Performance
Total number of shares to buy/sell
Price per share when purchasing
Price per share when selling
Buying Commission
Selling Commission
Investment Performance Results
Total Investment: $5050.00 | Total Revenue: $5940.00
Buying Commission: $50.00 | Selling Commission: $60.00
Good: Above market average return
Performance Analysis
Example Calculation
Apple Stock Trade Example
Number of Shares: 100 shares
Buying Price: $150.00 per share
Selling Price: $180.00 per share
Commission: 1% each way
Calculation
Total Cost = ($150 × 100) + ($150 × 100 × 1%) = $15,150
Total Revenue = ($180 × 100) - ($180 × 100 × 1%) = $17,820
Profit = $17,820 - $15,150 = $2,670
ROI = ($2,670 ÷ $15,150) × 100% = 17.62%
Investment Guidelines
Research First
Analyze company fundamentals
Study financial statements, market position
Diversify Portfolio
Spread risk across sectors
Don't put all eggs in one basket
Long-term Focus
Market averages ~10% annually
Patience often beats day trading
Trading Tips
Always sell above break-even price
Factor in commission costs
Good ROI is typically 10%+ annually
Consider tax implications
Understanding Stock Calculations
What is Stock Profit?
Stock profit is the difference between what you receive from selling shares and what you paid to buy them, including all commissions and fees. It represents the actual financial gain from your investment.
Why Calculate ROI?
- •Measures investment efficiency as a percentage
- •Compares different investment opportunities
- •Evaluates performance against market benchmarks
- •Helps make informed investment decisions
Calculation Formulas
Profit = Revenue - Total Cost
ROI = (Profit ÷ Total Cost) × 100%
- Revenue: (Selling Price × Shares) - Selling Commission
- Total Cost: (Buying Price × Shares) + Buying Commission
- Break-Even: Total Cost ÷ (Shares × (1 - Commission%))
Benchmark: The stock market averages ~10% annual returns historically