Business formulas

Enter Work days, Hours per day, and Non-billable (%) for the Billable Hours Calculator; enter percentage fields as percentage points and retain the units printed in each label. The calculator reports Billable hours: Billable ≈ worked hours × billable fraction. The model omits overhead or operating costs that are not entered explicitly.

Enter Fixed costs ($), Price/unit ($), and Variable cost/unit ($) for the Break-Even Calculator; retain the units printed in each label. The calculator reports Units and Revenue: Break-even analysis finds the sales volume that covers costs. Price/unit must exceed Variable cost/unit or no finite break-even volume exists.

Enter Used hours and Available hours for the Capacity Utilization Calculator; retain the units printed in each label. The calculator reports Utilization: Utilization = used ÷ available × 100. Available hours must be positive and measured over the same period as Used hours.

Enter Price ($) and Variable cost ($) for the Contribution Margin Calculator; retain the units printed in each label. The calculator reports Contribution $ and Margin %: Contribution margin is price minus variable cost. The model omits overhead or operating costs that are not entered explicitly.

Enter Desired annual ($) and Billable hours / year for the Hourly Rate From Salary Calculator; retain the units printed in each label. The calculator reports Hourly rate ($): Divide desired earnings by expected billable hours. The model omits overhead or operating costs that are not entered explicitly.

Enter Net terms (days) for the Invoice Terms Days Calculator; use finite values in the indicated domain. The calculator reports Days until due: Net-N means payment is due N days after invoice date. The day number is a simplified date offset and may not reflect weekends or payment-processing time.

Enter Cost ($) and Desired margin (%) for the Price From Margin Calculator; enter percentage fields as percentage points and retain the units printed in each label. The calculator reports Price ($): Price = cost / (1 − margin). Desired margin must be below 100% to produce a finite selling price.