The numbers in this story don't exactly line up, in a way that tells a fun and clearly stressful story: (The cases have 6 bags each.)
The intro to the blog post mentions 34k bags of coffee actually made. The initial order was thought to be 6k bags of coffee, but was actually 6k cases = 36k bags of coffee. So it looks like some got sold off between the delivery fiasco and the blog post. Later in the blog post it's mentioned as approximately 30k bags sold for half off + free shipping.
It looks like at time of writing there are $5277 in donations at $50/case, so 630 bags from the fundraiser. The Fire Sale has sold out at 24k bags, short of their original 30k bag goal. (Edit: They sold out of all of the caffeinated coffee, not all of the decaf.) They raised between $173k (all $7 bags + donations) and $197k (all $8 bags + donations), not counting the substantial shipping costs for 4k cases of coffee.
The debt likely to be paid off first is $60k of personal credit cards, $65k of business credit cards, and $45k of personal loans (there's a social cost to keeping these after such a successful fundraiser). $170k total here, leaving the $66k of other debt to be paid off more gradually.
(Edit: They only have decaf left from the sale coffees. The 4k bags not put up for sale, and some remaining decaf, are all of their excess inventory. Ignore following paragraph) ~~I'm guessing that they chose to keep the extra inventory after seeing the wild and immediate success of the sale. Knowing that they can pay off their worst debt, and getting a ton of new customers as well, they'd rather have the extra 6k bags around to sell at normal prices. It's also possible that they sold out of one type of coffee first, and that helped them decide to shut down the sale, rather than keeping it updated with the different varieties still in stock.~~
Modest Coffee now seems poised to be successful. Extra stock, no longer extra warehousing space needed, exposure to a ton of new customers, and their worst debts paid. I wouldn't be surprised if they look back on this fiasco as their biggest success in a few years.