The best approach will depend upon your goals, market, and the nature of your product. There is no "one size fits all" in pricing.
If you want some ideas, check the site in my profile.
It depends on your product, the market you are in etc. There is no silver bullet. A very generic answer would be: prices are relative. Start by finding things on the market that are similar to your solution. Analyse their value proposition and price. Compare their solution with what you offer.
I’d go check out the content that the folks at profitwell put out. They do a ton of analysis on how to price products.