Weighted Average Calculator
Calculate an average when observations have different importance.
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Business Analytics Tools
Use instructional calculators for forecasting, forecast accuracy, inventory decisions, expected value, weighted scoring, and trend analysis.
Instructional calculators
Every tool shows the formula, calculation, interpretation, and copy-ready result.
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Business Analytics Tools
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Moving Average Forecast Calculator
Create moving-average values and forecast the next period.
Open CalculatorExponential Smoothing Forecast Calculator
Update a forecast using a smoothing constant.
Open CalculatorForecast Error Measures Calculator
Calculate MAD, MSE, RMSE, and MAPE.
Open CalculatorEconomic Order Quantity Calculator
Estimate the order quantity that balances ordering and holding costs.
Open CalculatorReorder Point Calculator
Estimate the inventory level at which a new order should be placed.
Open CalculatorSafety Stock Calculator
Estimate safety stock using a service factor and demand variability.
Open CalculatorWeighted Decision Matrix Calculator
Compare three alternatives using weighted criteria.
Open CalculatorExpected Monetary Value Calculator
Calculate the probability-weighted payoff of an uncertain decision.
Open CalculatorLinear Trend Forecast Calculator
Estimate a least-squares straight-line trend and forecast a future period.
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