function calculateRateOfReturn() {
var initialInvestment = parseFloat(document.getElementById("initialInvestment").value);
var finalInvestment = document.getElementById("finalInvestment").value;
var investmentDuration = document.getElementById("investmentDuration").value;
var resultDiv = document.getElementById("result");
resultDiv.innerHTML = ""; // Clear previous results
if (isNaN(initialInvestment) || isNaN(finalInvestment) || isNaN(investmentDuration)) {
resultDiv.innerHTML = "Please enter valid numbers for all fields.";
return;
}
if (initialInvestment <= 0) {
resultDiv.innerHTML = "Initial investment must be greater than zero.";
return;
}
if (investmentDuration <= 0) {
resultDiv.innerHTML = "Investment duration must be greater than zero.";
return;
}
var profitOrLoss = finalInvestment – initialInvestment;
var totalRateOfReturn = (profitOrLoss / initialInvestment) * 100;
var annualizedRateOfReturn = (Math.pow((finalInvestment / initialInvestment), (1 / investmentDuration)) – 1) * 100;
resultDiv.innerHTML = "
Results:
";
resultDiv.innerHTML += "Profit/Loss: " + profitOrLoss.toFixed(2) + "";
resultDiv.innerHTML += "Total Rate of Return: " + totalRateOfReturn.toFixed(2) + "%";
resultDiv.innerHTML += "Annualized Rate of Return: " + annualizedRateOfReturn.toFixed(2) + "%";
}
.calculator-container {
font-family: sans-serif;
max-width: 600px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ddd;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.calculator-form h2 {
text-align: center;
margin-bottom: 15px;
color: #333;
}
.calculator-form p {
text-align: justify;
margin-bottom: 20px;
color: #555;
line-height: 1.5;
}
.form-group {
margin-bottom: 15px;
}
.form-group label {
display: block;
margin-bottom: 5px;
font-weight: bold;
color: #444;
}
.form-group input[type="number"] {
width: calc(100% – 10px); /* Adjust for padding */
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1em;
}
.calculator-form button {
width: 100%;
padding: 10px 15px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
font-size: 1.1em;
cursor: pointer;
transition: background-color 0.3s ease;
}
.calculator-form button:hover {
background-color: #0056b3;
}
.calculator-result {
margin-top: 25px;
padding: 15px;
background-color: #f8f9fa;
border: 1px solid #e0e0e0;
border-radius: 4px;
}
.calculator-result h3 {
margin-top: 0;
color: #333;
}
.calculator-result p {
margin-bottom: 8px;
color: #555;
font-size: 1.05em;
}