function calculateGeometricRateOfReturn() {
var initialInvestment = parseFloat(document.getElementById("initialInvestment").value);
var finalInvestment = document.getElementById("finalInvestment").value;
var numberOfYears = document.getElementById("numberOfYears").value;
var resultDiv = document.getElementById("result");
if (isNaN(initialInvestment) || isNaN(finalInvestment) || isNaN(numberOfYears) || initialInvestment <= 0 || finalInvestment <= 0 || numberOfYears <= 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for all fields.";
return;
}
var geometricRate = Math.pow((finalInvestment / initialInvestment), (1 / numberOfYears)) – 1;
var percentageRate = geometricRate * 100;
resultDiv.innerHTML = "The Geometric Rate of Return is: " + percentageRate.toFixed(2) + "%";
}
.calculator-wrapper {
font-family: sans-serif;
max-width: 600px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ccc;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.calculator-inputs h2, .calculator-results h3 {
text-align: center;
color: #333;
margin-bottom: 20px;
}
.input-group {
margin-bottom: 15px;
}
.input-group label {
display: block;
margin-bottom: 5px;
font-weight: bold;
color: #555;
}
.input-group input[type="number"] {
width: calc(100% – 12px);
padding: 8px;
border: 1px solid #ccc;
border-radius: 4px;
box-sizing: border-box;
}
.calculator-inputs button {
display: block;
width: 100%;
padding: 10px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
font-size: 16px;
cursor: pointer;
transition: background-color 0.3s ease;
}
.calculator-inputs button:hover {
background-color: #0056b3;
}
.calculator-results {
margin-top: 20px;
padding-top: 15px;
border-top: 1px solid #eee;
}
#result {
font-size: 1.1em;
text-align: center;
color: #28a745;
font-weight: bold;
}