function calculateDeflation() {
var initial = parseFloat(document.getElementById('initialVal').value);
var final = parseFloat(document.getElementById('finalVal').value);
var resultArea = document.getElementById('result-area');
// Validation
if (isNaN(initial) || isNaN(final)) {
alert("Please enter valid numeric values for both fields.");
resultArea.style.display = 'none';
return;
}
if (initial === 0) {
alert("Initial value cannot be zero.");
resultArea.style.display = 'none';
return;
}
// Calculations
var difference = final – initial;
var percentageChange = (difference / initial) * 100;
var isDeflation = difference 0) {
// Inflation logic
statusElement.innerHTML = "Inflation (Prices Increased)";
statusElement.className = "result-value inflation-highlight";
rateElement.innerHTML = percentageChange.toFixed(2) + "%";
rateElement.className = "result-value inflation-highlight";
// Purchasing power decreases during inflation
powerElement.innerHTML = "Money is worth " + percentageChange.toFixed(2) + "% LESS";
} else {
// No change
statusElement.innerHTML = "Stagnation (No Change)";
statusElement.className = "result-value";
rateElement.innerHTML = "0.00%";
rateElement.className = "result-value";
powerElement.innerHTML = "Purchasing power remains the same";
}
}
Understanding Deflation Rate
Deflation is the economic term for a general decline in prices for goods and services. It is the opposite of inflation. While lower prices might seem beneficial for consumers in the short term, sustained deflation can indicate a weakening economy, as consumers may delay purchases in anticipation of further price drops, leading to lower production and wages.
This Deflation Rate Calculator allows you to determine the percentage decrease in prices between two periods. It measures the rate of negative inflation by comparing an initial value (such as the Consumer Price Index or the price of a specific asset) against a final value.
How to Calculate Deflation
The formula for calculating the deflation rate is based on the percentage change formula. When the result is negative, it indicates deflation. To express it as a positive "deflation rate," we look at the magnitude of the drop.