◆ Excel · formulas

Cost Validation

Audit a complex cost formula: trace precedents for the final total cell, break the formula into named intermediate cal…

2heights

12tasks

6roles do it

The same job, four heights

do it · improve it · decide · become

AExecute — “help me do it”Audit a complex cost formula: trace precedents for the final total cell, break the formula into…+

Audit a complex cost formula: trace precedents for the final total cell, break the formula into named intermediate calculations, wrap error-prone parts with IFERROR, and produce a short worksheet showing each component that feeds the total for the meeting.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

BImprove — “do it better”Before the client meeting, make the audit defensible — create a step-by-step decomposition that…+

Before the client meeting, make the audit defensible — create a step-by-step decomposition that shows each input, the interim subtotal it produces, and its source file or sheet, flag inputs that are assumptions with confidence levels, and prepare a one-slide summary that justifies the unexpected total in plain language.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

The real tasks

6 of them

Audit a complex cost formula to show where an unexpected total comes from so I can justify it in a meeting.

Audit a cost formula to show which worksheet and cells feed the final subcontractor estimate before sign-off.

Audit a structural engineer’s spreadsheet to trace where a suspicious cost line comes from so I can approve the change order with confidence.

Audit formula chains in the acquisition cost workbook to prove to donors and finance that valuations are correct.

Audit a complex fee calculation sheet to show where a subtotal is coming from and to validate the numbers the billing department will send out.

Audit a complex formula chain in the regulatory costing file so I can demonstrate to auditors that the numbers tie back to source entries.

Who does this

6 roles

Architectural Project ManagerRegulatory Affairs AnalystArchitectArchitectural DrafterArchivistLegal Assistant

Questions people ask

honest answers

Because you rarely think 'I want the redaction tool'. You think 'I have to share this without leaking the client's details'. Start from the need, and the feature finds you.

Real. Every job here was drawn from what people in real roles were actually seen doing in Excel — not a feature checklist.

No. Each page gives you a ready prompt you can paste into an AI assistant, plus the plain steps to do it yourself. Start with either — the goal is the finished job, not the tool.