Luther is having his birthday party at the Galactic Fun party venue this year. The Blastoff party package costs $215 and covers the entrance fee for guests, a private party room, and model rocket painting. Luther's parents upgraded his package to include a favor for each of his 9 guests, bringing the total to $269. What is the cost of each favor?

$

The cost of the upgrade is $269 - $215 = $<<269-215=54>>54.

The cost of each favor is $54 / 9 guests = $<<54/9=6>>6. Answer: \boxed{6}.

To find the cost of each favor, we need to subtract the cost of the Blastoff party package from the total amount paid.

Total amount paid = $269
Cost of Blastoff party package = $215

So, the cost of the favors can be calculated as follows:

Cost of favors = Total amount paid - Cost of Blastoff party package
= $269 - $215
= $54

As there are 9 guests, we can divide the cost of the favors by the number of guests to find the cost of each favor.

Cost of each favor = Cost of favors / Number of guests
= $54 / 9
= $6

Therefore, the cost of each favor is $6.

To find the cost of each favor, we need to subtract the cost of the basic Blastoff party package from the total cost of the upgraded package and then divide the result by the number of guests.

First, let's subtract the cost of the basic Blastoff party package from the total cost of the upgraded package:

Total cost of the upgraded package - Cost of the basic Blastoff party package = Cost of the favors

$269 - $215 = $54

Now, we need to divide the cost of the favors by the number of guests:

Cost of the favors / Number of guests = Cost per favor

$54 / 9 = $6

Therefore, the cost of each favor is $6.