This is among the better places to start to understand how a deal is constructed.
Learning this is more useful than looking at 5 leases done by other people in different months, even in your own state, because programs can change every month.
When you look at someone else’s deal, you can make adjustments in the calculator for things like registration fee and sales tax differences. Those things don’t matter because there’s nothing you can do about them.
But your question is really too broad to answer in one post.
That’s why there’s an entire forum on the topic of leasing. 
Also, once you understand where the market is on your next car, pivot to making firm unambiguous offers. There’s nuance here too, you’ll pick it up with additional reading.