In my opinion, the report should be more detailed, to be considered as "transparency report". I.e. what exactly was 760 EUR / speaker spent on? What is "misc"? Who were the sponsors?
Anyway, move in the right direction :)
Speakers costs includes flights or hotels for speakers who wouldn't be able to attend otherwise.
Misc (Miscellaneous) are all other small costs like payment fees, or accounting, or hosting - small & boring costs like that.
I think there has to be a good balance and if we will go for all details, it'd be just boring for most of the people.