HBO star Lena Dunham tweeted this today about paying opening-act performers on her book tour.

It all started yesterday when the New York Times reported details of Dunham’s 12-city book tour beginning this week, noting nearly  600 people responded to an open call for video auditions for her “ambitious” tour on her website. The paper quoted the Girls creator and star as saying, “Three of the videos were disturbing, but the rest were super awesome,” and that she’d spent several hours screening the auditions in bed. In passing, the NYT said the seven artists who made the final cut will not get cameos in Dunham’s HBO show “Instead, they’ll be the warm-up acts — performing free of charge — on an elaborately produced, 11-city tour” to promote her book Not That Kind of Girl.

The website Gawker, however, found the salaries being paid to these performers more noteworthy than the fact that Dunham screened the videos in bed, in contrast to NYT, and hilariously did the math:

ALP
2 years
Wow, that is one unattractive woman, inside and out. Mostly out. But in, too. (And out.)
Anonymous
2 years
She grew up in brooklyn but her family owned two summer homes, and she went to a...
Chewie
2 years
Who is Lena Dunham, and why should anyone care?

– Forbes’ estimate of Lena Dunham’s annual earnings: $6 million

– Lena Dunham’s book advance: $3.7 million

– Tickets sold for Lena Dunham’s book tour: 8,000

– Price per ticket: $38 (or $900, from scalpers )

– Total book tour ticket revenue: $304,000

– Percentage of book tour revenue reserved for regular people performing as warm-up acts for Lena Dunham: 0

– Number of minutes that Lena Dunham would need to spend writing in order to earn the money that will be paid to the warm-up acts on her upcoming book tour: 0

After tweeting that her opening acts would be “compensated” after all, Dunham added: