We started with some napkin math, graduated to a complicated spreadsheet, and then tried to distill that into this rough calculator: https://runway.team/release-cost-calculator. General idea was to capture the cost of wasted time spent coordinating and herding cats instead of doing real work! We think there are even more hidden costs not captured here though - e.g. upkeep for in-house tooling or effort spent onboarding new team members.