This calculator helps you determine the proportional share of something based on a given period or a set of conditions. A pro-rata calculation is used when you need to divide an amount, cost, or benefit proportionally over a specific timeframe or a different basis than the original agreement.
function calculateProRata() {
var totalAmount = parseFloat(document.getElementById("totalAmount").value);
var totalPeriod = parseFloat(document.getElementById("totalPeriod").value);
var partialPeriod = parseFloat(document.getElementById("partialPeriod").value);
var resultDiv = document.getElementById("proRataResult");
resultDiv.innerHTML = ""; // Clear previous results
if (isNaN(totalAmount) || isNaN(totalPeriod) || isNaN(partialPeriod)) {
resultDiv.innerHTML = "Please enter valid numbers for all fields.";
return;
}
if (totalPeriod <= 0) {
resultDiv.innerHTML = "Total period must be greater than zero.";
return;
}
if (partialPeriod < 0) {
resultDiv.innerHTML = "Partial period cannot be negative.";
return;
}
var proRataShare = (totalAmount / totalPeriod) * partialPeriod;
resultDiv.innerHTML = "