Before selling things I owned, I look at prices of same or similar items on the marketplace and price my item accordingly.
Wealth and access to wealth is one of the most widely experienced Accessibility issues.
How to approach pricing and packaging a new SaaS app, by example (HN comments)
Thinking about growth and profit (2020)
Don't just roll the dice – Software pricing guide (2012) (HN)
AristanderAI - Machine learning for better product pricing. Automate your pricing strategy to guess less and earn more.
The Definitive Guide to Pricing Plans
Falsehoods programmers believe about prices (Lobsters)
Adapty - Grow in-app subscriptions.
Adapty SDK iOS - Mobile SDK for growing mobile in-app purchases.
SaaS Pricing Models & How They Affect Valuation (2020) (HN)
ProsperStack - Use Stripe to automatically prevent cancellations. (HN)
9 Tricks to Experiment with your Pricing Strategy (2020)