Hey, @nurnberg, I know math is tricky with big numbers, but let me help you out:

Nintendo Switch w/2 Joy-Con: MSRP $299

Super Mario Odyssey: MSRP $59.99

Switch Carrying Case: MSRP 19.99 *(used Nintnedo BotW case as reference)

299

59.99

+19.99

---------

$378.99+tax

Let me know if you need any more assistance with advanced mathematics.