Deciding on the desired ROI from your launches - thoughts?

We are launching two products this month and I was wondering how do you decide on your desired ROI from your launches? Is it the # of sign ups, investor interest, PR? Can you at all predict/engineer the outcomes? Here are our upcoming launches in case you want to follow along - we'll be sharing our lessons learnt after: Tuesday 11th Sept - Chrome Extension - ChatGPT Data Leak Protection: https://www.producthunt.com/products/lakera-chatgpt-data-leak-protection September 27th - Lakera Guard - Secure your LLMS: https://www.producthunt.com/products/lakera