30 is the example result. This model reports an absolute gap. It removes the sign, so compare the original inputs to distinguish a shortfall from an excess.
This model reports an absolute gap.
Reading capacity and cost without hiding the workload
This model reports an absolute gap. It removes the sign, so compare the original inputs to distinguish a shortfall from an excess. A staffing plan needs available hours and the portion of those hours that can serve the intended work. Paid time, productive time and billable time are separate definitions. Recruiting, training and supervision can change the cost of a role.
What the model includes
Absolute gap = absolute value of (target or ending value − actual or starting value). Use one team and one reporting period. Headcount measures should distinguish people from full-time equivalents; hour-based models should state the expected schedule. A temporary absence and a permanent vacancy have different operating consequences. Review the result with the work queue and service commitment. A high utilisation percentage can signal limited room for urgent work, rather than a reason to add more demand immediately.
Example with the supplied inputs
Process start day: 0; Process end day: 30. Result: 30. The values are illustrative.
Compare one changed input
Process end day changes from 30 to 33. The result becomes 33. All other inputs remain fixed.
Calculation rule
Absolute gap = absolute value of (target or ending value − actual or starting value).
Inputs and output
| Input | Example value | Entry convention |
|---|---|---|
| Process start day | 0 | Use the source quantity represented by process start day. Keep the counted population fixed and avoid mixing a unit value with a period total. |
| Process end day | 30 | Use the source quantity represented by process end day. Keep the counted population fixed and avoid mixing a unit value with a period total. |
Output: 30 is the example result. This model reports an absolute gap. It removes the sign, so compare the original inputs to distinguish a shortfall from an excess. Use the formula to distinguish a cash amount, count, percentage or ratio.
How to use the page
Collect the inputs
Gather Process start day, Process end day. Use one period and the units shown in the form.
Run the calculation
Enter the values and select the action. The calculation rule above explains how the inputs produce the result.
Compare a scenario
Change Process end day on its own, keeping the other inputs fixed. Read both results before changing another assumption.
Worked example
With the example inputs listed above, the result is 30.
Change Process end day from 30 to 33 while keeping every other value fixed. The result becomes 33. This comparison isolates that input; it does not forecast how other variables will respond.
Check the stated formula, units and limits before using the result in a decision.
Keep the displayed formula, input units and model scope with the result. Corrections or questions can be sent through the request section on this page.
Content updated: October 11, 2026