Answer the following question, with explanation first.
Leon ordered 3 sets of toy organizers for $78 per set and 2 gaming chairs for $83 each. If there is a delivery fee that is 5% of the total sales, how much did Leon pay?

420
Three sets of toy organizers cost $78 x 3 = $234.

Two gaming chairs cost $83 x 2 = $166.

Leon's total orders amount to $234 + $166 = $400.

Then, the delivery fee is $400 x 5 / 100 = $20.

So, Leon had to pay a total of $400 + $20 = $420.

.

Therefore, the answer is 420