Discount sanity checker
Paste every discount you show. Get a consistency score out of 100, each clash, and one true offer line.
Discount sanity checker is a free AI prompt for the job "Set your prices". Give the instructions to an AI assistant that supports the required files and tools, then review its output.
Free · No account · Made by AI Blocks · Level: beginner
What it does
Discounts drift. The ad says 61% off, the badge says up to 55%, the banner says 52%, and the footer says the whole thing needs an SMS sign-up. Each line was true for someone on some day. Together they read as a trick, and the buyer who notices goes to check the renewal price with suspicion. This prompt puts every offer line in one table with where it appears and the maths it implies, then recomputes the real percent for each case from your prices. It lists each clash with how serious it is, scores consistency out of 100 with the sum shown, and writes the one true line in a short version for ads and a full version for the page, with the condition and the renewal price in it. It also tells you what words to use in each place.
You give it
- Every price and discount shown, quoted, with where it appears
- The real prices and conditions
- Footers and terms (advised)
- Your page (optional)
- Ad copy (optional)
You get
- A table of every offer line with its implied maths
- The true discount for each case, arithmetic shown
- Each clash rated, and a consistency score out of 100 now and after fixes
- One true offer line for ads and for the page, and what to change where
Use it when
- Your ads, badges and banners were written at different times by different people.
- A customer wrote in asking which discount is the real one.
- You are about to launch a sale and want every number to agree before it goes live.
How to use it
- Copy the prompt, then paste it into Claude, ChatGPT or Gemini.
- Under it, quote every discount line you can find and say where each appears.
- Add the real prices: list, first order, renewal, shipping, and every condition.
- Fix the severe clashes first, then paste the ONE TRUE LINE where the CHANGE WHERE list says.