Budget Overrun Calculator
Use this free Budget Overrun Calculator to determine how much your project has exceeded its planned budget. Enter the planned and actual costs to find your overrun percentage.
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If you're using this calculator to plan budgets, resources, timelines, or project changes, the right project management software can help you turn these numbers into better project decisions.
Budget Overrun Calculator
How Budget Overrun is Calculated
Budget Overrun (%) = ((Actual Cost − Planned Budget) ÷ Planned Budget) × 100. This percentage indicates how much your project exceeded the planned cost.
Example
If your planned budget was $100,000 and actual cost was $110,000: Overrun = ((110,000 − 100,000) ÷ 100,000) × 100 = 10% overrun.
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