Calculate Budget Variance

Budget Variance Calculator

Expense Revenue

Budget Variance Results:

Enter your budgeted and actual amounts above and click "Calculate Variance" to see the results.

function calculateBudgetVariance() { var itemType = document.getElementById("itemType").value; var budgetedAmount = parseFloat(document.getElementById("budgetedAmount").value); var actualAmount = parseFloat(document.getElementById("actualAmount").value); var resultDiv = document.getElementById("result"); // Input validation if (isNaN(budgetedAmount) || isNaN(actualAmount)) { resultDiv.innerHTML = "Please enter valid numbers for both Budgeted and Actual Amounts."; return; } var variance = actualAmount – budgetedAmount; var varianceType = ""; // Favorable or Unfavorable var percentageVariance = 0; if (budgetedAmount === 0) { if (variance === 0) { percentageVariance = 0; // If both are 0, variance is 0% } else { // If budgeted is 0 and actual is not, percentage variance is undefined or infinite. // We'll handle this with a specific message. percentageVariance = NaN; } } else { percentageVariance = (variance / budgetedAmount) * 100; } if (itemType === "expense") { if (variance < 0) { varianceType = "Favorable"; // Actual 0) { varianceType = "Unfavorable"; // Actual > Budgeted for expense is bad (spent more) } else { varianceType = "Neutral"; // Actual = Budgeted } } else if (itemType === "revenue") { if (variance > 0) { varianceType = "Favorable"; // Actual > Budgeted for revenue is good (received more) } else if (variance < 0) { varianceType = "Unfavorable"; // Actual = 0 ? "+" : ""; // Add a plus sign for positive variance var resultHTML = "

Budget Variance Results:

"; resultHTML += "Budgeted Amount: " + budgetedAmount.toFixed(2) + ""; resultHTML += "Actual Amount: " + actualAmount.toFixed(2) + ""; resultHTML += "Variance: " + varianceSign + variance.toFixed(2) + ""; if (isNaN(percentageVariance)) { resultHTML += "Percentage Variance: Cannot calculate percentage variance when budgeted amount is zero and actual amount is not zero."; } else { resultHTML += "Percentage Variance: " + varianceSign + percentageVariance.toFixed(2) + "%"; } var varianceTypeColor = "; if (varianceType === 'Favorable') { varianceTypeColor = '#28a745'; // Green } else if (varianceType === 'Unfavorable') { varianceTypeColor = '#dc3545'; // Red } else { varianceTypeColor = '#6c757d'; // Gray } resultHTML += "Variance Type: " + varianceType + ""; resultDiv.innerHTML = resultHTML; }

Understanding Budget Variance

Budget variance is a critical financial metric that measures the difference between the budgeted (planned) amount and the actual amount of an expense or revenue item. It helps individuals and organizations assess their financial performance, identify areas of overspending or underspending, and pinpoint opportunities for improvement.

What is Budget Variance?

Simply put, budget variance is the difference between what you expected to spend or earn and what you actually spent or earned. It's calculated using a straightforward formula:

Budget Variance = Actual Amount – Budgeted Amount

This calculation provides a raw number, but its interpretation depends on whether the item is an expense or a revenue.

Favorable vs. Unfavorable Variance

The terms "favorable" and "unfavorable" are used to describe the impact of the variance on your financial health:

  • For Expenses:
    • Favorable Variance: Occurs when the actual expense is LESS than the budgeted expense. (e.g., you budgeted to spend 500 but only spent 450). This is good because you saved money.
    • Unfavorable Variance: Occurs when the actual expense is MORE than the budgeted expense. (e.g., you budgeted to spend 500 but spent 550). This is bad because you overspent.
  • For Revenue:
    • Favorable Variance: Occurs when the actual revenue is MORE than the budgeted revenue. (e.g., you budgeted to earn 1000 but earned 1100). This is good because you earned more than expected.
    • Unfavorable Variance: Occurs when the actual revenue is LESS than the budgeted revenue. (e.g., you budgeted to earn 1000 but only earned 900). This is bad because you underperformed on earnings.

Percentage Variance

While the absolute variance tells you the dollar amount, the percentage variance provides context by showing the variance relative to the original budget. It's calculated as:

Percentage Variance = (Budget Variance / Budgeted Amount) * 100

This helps you understand the magnitude of the variance. For example, a 50 variance on a 500 budget (10%) is more significant than a 50 variance on a 50,000 budget (0.1%).

How to Use the Calculator

Our Budget Variance Calculator simplifies this process:

  1. Select Item Type: Choose whether the item you're analyzing is an "Expense" or "Revenue." This is crucial for correctly interpreting favorable vs. unfavorable.
  2. Enter Budgeted Amount: Input the amount you originally planned or budgeted for this item.
  3. Enter Actual Amount: Input the actual amount that was spent or received for this item.
  4. Click "Calculate Variance": The calculator will instantly display the absolute variance, the percentage variance, and clearly state whether the variance is Favorable or Unfavorable.

Examples:

Example 1: Marketing Expense

  • Item Type: Expense
  • Budgeted Amount: 1,000
  • Actual Amount: 850
  • Calculation: 850 - 1,000 = -150
  • Result: -150 (Favorable, -15.00%) – You spent less than budgeted.

Example 2: Sales Revenue

  • Item Type: Revenue
  • Budgeted Amount: 10,000
  • Actual Amount: 10,500
  • Calculation: 10,500 - 10,000 = +500
  • Result: +500 (Favorable, +5.00%) – You earned more than budgeted.

Example 3: Office Supplies Expense

  • Item Type: Expense
  • Budgeted Amount: 200
  • Actual Amount: 230
  • Calculation: 230 - 200 = +30
  • Result: +30 (Unfavorable, +15.00%) – You spent more than budgeted.

Why Analyze Budget Variance?

Regularly analyzing budget variance allows you to:

  • Identify Trends: Spot recurring patterns of overspending or underspending.
  • Improve Forecasting: Refine future budgets based on past actual performance.
  • Make Informed Decisions: Understand where resources are being allocated and if adjustments are needed.
  • Control Costs: Take corrective action quickly when unfavorable variances occur for expenses.
  • Boost Revenue: Investigate why revenue variances are unfavorable and how to improve.
  • Enhance Accountability: Hold departments or individuals responsible for their financial performance.

By actively using tools like this Budget Variance Calculator, you can gain better control over your finances and make more strategic decisions.

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