This calculator helps you determine the rate of growth between two points in time. It's useful for tracking the progress of populations, investments, or any quantity that changes over a period.
function calculateGrowthRate() {
var initialValue = parseFloat(document.getElementById("initialValue").value);
var finalValue = parseFloat(document.getElementById("finalValue").value);
var timePeriod = parseFloat(document.getElementById("timePeriod").value);
var resultDiv = document.getElementById("result");
if (isNaN(initialValue) || isNaN(finalValue) || isNaN(timePeriod) || initialValue <= 0 || timePeriod <= 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for all fields.";
return;
}
// Formula for Absolute Growth: Final Value – Initial Value
var absoluteGrowth = finalValue – initialValue;
// Formula for Percentage Growth: ((Final Value – Initial Value) / Initial Value) * 100
var percentageGrowth = (absoluteGrowth / initialValue) * 100;
// Formula for Average Annual Growth Rate (AAGR): (Percentage Growth / Time Period)
var averageAnnualGrowthRate = percentageGrowth / timePeriod;
resultDiv.innerHTML =
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