Exemplos
ROI — Worked Examples
3 real worked examples for the ROI calculator. See how we solve common scenarios with full step-by-step math.
1
Stock investment return
Cenário
Bought 100 shares at $50, sold at $75, paid $10 commission total.
Entradas
- Buy
- 100 × $50 = $5,000
- Sell
- 100 × $75 = $7,500
- Fees
- $10
Passos do cálculo
- Gain = 7,500 − 5,000 = $2,500
- Net cost = 5,000 + 10 = $5,010
- ROI = (2,500 − 10) / 5,000 × 100
- ROI = 2,490 / 5,000 × 100
- ROI = 49.8%
Resultado
ROI: 49.8% over the holding period
2
Real estate investment
Cenário
Bought a rental property for $200,000, sold 5 years later for $260,000. Spent $15,000 on repairs and $8,000 in transaction costs.
Entradas
- Buy
- $200,000
- Sell
- $260,000
- Repair costs
- $15,000
- Transaction costs
- $8,000
Passos do cálculo
- Total investment = 200,000 + 15,000 = $215,000
- Net proceeds = 260,000 − 8,000 = $252,000
- Profit = 252,000 − 215,000 = $37,000
- ROI = 37,000 / 215,000 × 100 = 17.2%
- Annualized (CAGR): (252,000/200,000)^(1/5) − 1 ≈ 4.7% per year
Resultado
Total ROI: 17.2% over 5 years • Annualized: ~4.7%/year (CAGR)
3
Marketing campaign
Cenário
Spent $5,000 on Google Ads, generated $18,000 in direct sales revenue (gross margin 40%).
Entradas
- Ad spend
- $5,000
- Revenue
- $18,000
- Gross margin
- 40%
Passos do cálculo
- Gross profit = 18,000 × 0.40 = $7,200
- Net ROI = (7,200 − 5,000) / 5,000 × 100
- Net ROI = 2,200 / 5,000 × 100 = 44%
Resultado
Net ROI: 44% • Each $1 in ad spend returned $1.44 in profit