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Build a weekly budget tracker in Google Sheets with Gemini

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by Krishi Chowdhary (TechRadar)
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Evidence: Article or interviewA newsletter, journalist or interview account of what happened.

Context: Prompt guide: a shared prompt, not a record of a completed task.

Beginner-friendlyNo logins, payments or coding needed. Low risk: paste the prompt and you should get something useful.

Outcome

A TechRadar guide shows how to prompt Gemini in Google Sheets to create a budget table with Category, Budgeted Amount, Actual Amount and Difference columns, then add a subtraction formula and conditional formatting so it updates as expenses are logged. It notes Gemini in Sheets needs a paid Google plan.

Agent

Gemini

Prompt Original prompt

Exact prompt as published in the source.

I want to create a budget tracker. Create a table with four columns: Category, Budgeted Amount, Actual Amount, and Difference.

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Run this task now, exactly as written below. Everything you need is here, so start straight away and only stop if something required is missing or a rule below tells you to.

Goal: Build a simple weekly budget tracker that updates itself as I log spending.

Fill in before running:
- My spending categories: [LIST]
- Weekly budget per category: [AMOUNTS]
- Spreadsheet app: [Google Sheets / Excel]

Rules:
- Create a main table: Category, Budgeted, Actual, Difference, with a working formula for Difference.
- Create a separate log table (date, category, amount, note) that feeds Actual automatically.
- Add color highlighting for over-budget categories.
- Explain how to start a new week.
- If a site asks for a login, a CAPTCHA or payment details, stop and hand control back to me.
- Ask for my OK before you pay, book, send, submit or cancel anything.
- Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify.
- Test the sheet with two sample expenses and confirm the totals before I start using it.

Output: Step-by-step instructions and formulas I can paste.

You'll know it worked when: when I log an expense, the category's Actual and Difference update by themselves.

Before you finish: re-read my goal and constraints, check your answer against each one, and list anything you assumed or couldn't confirm.

Source

https://www.techradar.com/ai-platforms-assistants/i-used-gemini-in-google-sheets-to-create-a-weekly-budget-that-updates-itself-heres-how

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