Hacker News new | ask | show | jobs
by Flimm 2162 days ago
This looks really cool. I put in some numbers for a service that I am considering, and the answer was the opposite of what I was intuitively expecting, which proves the need for something like this.

Some feedback:

- s/(one person)/(per person)/g - The "cover costs" section doesn't really make sense to me. For example, in one example, the breakdown says that I will burn $10000 extra, but that I will also cover costs with 23 hours of use. How does it know how much use it will take to cover costs? How does it know how much profit is generated per hour of use? Am I misunderstanding something? - It would be nice if the formula used was displayed in small text or in a tooltip or something.

3 comments

What I got after messing with it a bit:

The "cover costs" assumes your people will use the tool 8 hours a day. By the productivity you gain, it calculates how much you save in salary.

The "free up an hour" also assumes your people will use the tools 8 hours a day.

The "cover costs with" calculates how much your people must use the tool for it to eventually pay for itself. If it's larger than 8 hours, then the tool will never pay up.

I've been going back and forth on whether or not Hey is worth it for me. I really liked my trial, but $100 just feels like a high price. But according to this calculator I'd only have to value my free time at $3/hour to start "saving money".
Thanks for the feedback.

For simplicity there are a whole host of underlying assumptions about what a work day is, what time spent means , etc.

Explaining at least some of those assumptions is on my list of improvements, but there will never be a 'correct' answer in a generic form like this. It's more intended as a quick investigation/conceptual check.