"Taken" as in "take", to take from customers. Here it means the same as "receive", not "steal". "Boffo" is old slang meaning "great" or something like that. It's not something you should add to your own vocabulary. :)

Hello Min, my name's John, nice to meet you. "Taken in" here refers to the money they made from that show in a single week. The phrase "boffo numbers" means extremely good. Hope this helps.

taken in - collected; boffo numbers - the number of profitable performances