Take the calculator with you.

Five decision models are now available as live, read-only Google Sheets templates. Preview the model, make your own copy, change the assumptions and keep the scenario in your Drive.

Template catalog →

Native Google Sheets

Reseller Buy Decision Calculator

Risk-adjusted reseller sourcing model with sell-through, return risk, time value, mileage, expected profit and target ROI.

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Native Google Sheets

Contractor Change Order Profit Impact

Change-order pricing model with delay overhead, disruption reserve, callback risk, payment leakage and target margin.

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Native Google Sheets

Paid Ads Profit Ceiling

Work backward from unit economics to maximum CPA, CPL, CPC, CPM and the ROAS floor.

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Native Google Sheets

Apartment Lease Offer Comparator

Compare lease cash cost, concessions, recurring fees, move-in cash, commute cost and commute time.

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Native Google Sheets

Concrete Bags vs Ready-Mix Decision

Compare bagged concrete with ready-mix after volume, labor time, rental, delivery and short-load fees.

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Why both a web calculator and a spreadsheet?

The web calculator is faster for one answer. The Google Sheet is better when you want to save scenarios, compare alternatives, audit formulas or modify the model. Both point back to the same tannerd.net methodology.