The Annualized Rate of Return (ARR) is a crucial metric for understanding the profitability of an investment over a period longer than one year. It smooths out the effects of compounding, providing a standardized average annual growth rate. This allows for easier comparison between investments with different holding periods.
function calculateAnnualizedReturn() {
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 || numberOfYears <= 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for all fields.";
return;
}
// Formula: ARR = [(Final Investment / Initial Investment)^(1 / Number of Years)] – 1
var annualizedReturn = Math.pow((finalInvestment / initialInvestment), (1 / numberOfYears)) – 1;
// Format as percentage
var formattedReturn = (annualizedReturn * 100).toFixed(2);
resultDiv.innerHTML = "
Your Annualized Rate of Return is: " + formattedReturn + "%