Over simplifying but the real questions are - How long did it take to create - How long did it take to streamline manufacturing - What were the associated costs

Over simplifying but the real questions are - How long did it take to create - How long did it take to streamline manufacturing - What were the associated costs and so on. Then what's the real cost distribution over current practices. I'm sure the answer isn't a 1000$ and certainly not 5$ - but maybe something in between or a bit less? Articles like these are too simple and lack perspective for clicks...