Conversation so far:
How much money has he made?
He could have earned up to $30 million each year depending on ratings for Leno, compared to a $20 million annual salary during his last years at Tonight.
How long was did he work for NBC?
Leno had a contract for five years  for the show.
What other financial impact did the show have?
Each airing of Leno cost about $350,000 to $400,000 versus up to $3 million for an hour-long drama.
How did NBC benefit from this?
saving NBC $13 million each week without the network needing the show to beat its competitors.
Are there any other interesting aspects about this article?
Those costs include the services of 22 writers, whom Leno called the "top 5% of the highest-paid .
.
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in the Guild..
What did the writers do on the show?
CANNOTANSWER.

Question: What other financial impacts did the show have?
Self-contained rewrite: What other financial impacts did the show have aside from making Leno a lot of money?