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Work out the true hourly cost of a purchase
A big price looks scary until you spread it over how long you'll use it. Get a simple cost-per-use or cost-per-hour.
The prompt · ChatGPT
Work out the true hourly or per-use cost of a purchase. Item: [what] Price: [amount] How often I'll use it: [e.g. twice a week, 10 times a year] How many years it should last: [number] Extra costs if any: [consumables, membership, or none] Ask me up to 3 short questions first if anything important is missing. Wait for my answers. Then: 1. Cost per use and, if it fits, cost per hour. 2. How that compares in plain words to something everyday I already buy. 3. A keep, wait or skip line based on my usage. 4. What would change the sum (using it less, it breaking early). Show the working. Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts, figures or products. UK English. Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.
A short example
Fill the blanks, then paste. what: a short note you already have. amount: a short note you already have. Leave the rest of the prompt as written.
This does not give tax advice. The books stay in the accounting system.
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