Consider the upscale Royal Bakery which charges $$250$ for a chocolate babka $($it$\text{'}$s very special$),$ while the production cost for the same babka is $$100.$ A neighboring restaurant has agreed to buy all the chocolate babkas that are left at the end of the day at the price of $$50$ per babka. Note: this same restaurant will not buy any leftover cinnamon babkas.

What is the Newsvendor quantile for Royal Bakery's chocolate babkas?

$150$

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Question $21\mathrm{.}66$ pts

The owner of Royal Bakery seeks a customer service level of $90\%.$ What is the implicit under$-$stock cost for chocolate babkas?

Please state your answer in dollars.