PlanMaker 2026 · Analysis and formulas · Intermediate

Use Goal Seek in PlanMaker to Reach a Target

Set up a simple target-profit calculation in PlanMaker 2026 Goal Seek and understand the formula, target and variable cell fields.

Official documentation reviewed; native application verification pending · Updated 10 October 2026 · Editorial standards

Goal Seek works backwards: you know the result you want and ask the spreadsheet to find the input that produces it. PlanMaker’s 2026 manual documents a goal-seek dialog with Formula cell, Target value, Variable cell, and Accuracy fields.

Example: how many units produce 420 in revenue?

In a blank worksheet, enter:

Cell	Enter	Meaning
`B1`	`12`	Revenue per unit
`B2`	`25`	Starting guess: units
`B3`	`=B1*B2`	Calculated revenue

With B2=25, the formula produces 300. The target is 420, so the exact mathematical answer is 420 / 12 = 35 units.

Use PlanMaker Goal Seek

Select the formula cell B3.
Choose Data → Analyze → Goal seek.
Set Formula cell to B3 and Target value to 420.
Set Variable cell to B2. The solver changes B2, not the fixed 12 in B1.
Start the approximation and inspect the answer. Expect approximately 35 in B2 and 420 in B3.
Only accept/apply the result after verifying the proposed number makes sense.

What Goal Seek can and cannot do

It varies one cell to match a formula result. It is not the right tool to optimize several independent decisions with capacity constraints; that requires a solver or optimization model. Results are approximations and can fail to converge for some equations.

When modelling whole products, round units to a permitted integer and then recompute the final amount—don’t rely on a fractional unit merely because the approximation converged.

Troubleshooting

Variable cell has a formula: use an editable numerical input cell instead.
Formula does not depend on the variable: changing B2 must genuinely affect B3.
Unexpected answer: check the target units, decimal separators and cell references.
No solution: the model may be discontinuous, constrained, or impossible to reach with that single input.

Verification: 12 × 35 = 420 was checked arithmetically. Goal Seek workflow is documentation-checked and awaits native PlanMaker execution.

Official documentation: Software manual or vendor release notes. This article is part of a staged content batch; confirm the interface and output in the stated software before public deployment.