>>22965644chef here
mkt means market price
it's for things which change price frequently
>sushi tuna>black truffle>langoustineand as in this case being a steak menue
>wagyu some of these are sold at auction and the individual fish/cow can greatly influence final price
fancy places print menus on gold leaf paper and reprinting the whole thing everyday is cost prohibitive so items with prices that can change several times a week or even daily are marked mkt and you just ask the waiter if you care
you only see this on stuff that's already super expensive anyway and the fluctuation is usually small but this video is acting like it was some wild shift or somehow unexpected
if you order a5 wagyu it's expensive
it was expensive yesterday
and it will be expensive tomorrow
3-5% swings don't make a chuck into a filet