As you allude to in the original post, this is a meaningless comparison. Smart producers view good sales for a limited-run nonprofit premiere as "nice but irrelevant," especially if the house has like 600 seats or less. Bad sales should be a warning sign for trouble ahead (Paradise Square in Chicago,Transparent in LA, the NY nonprofit runs of Torch Song, Prayer For The French Republic, and Pal Joey were not close to sold-out). Especially for a commercial tryout.
Regardless of the sales, it will always be advertised as "direct from a sold-out run at X." 
A smart producer can usually sense when there's genuine appetite for a show, versus just mild curiosity. Which was probably the thinking behind moving THE SIGN IN SIDNEY BRUSTEIN'S WINDOW, which had 2 big stars, sold very well in Brooklyn at Broadway-level prices (in a Broadway-sized house), and then moved to Bway too quickly and never gained momentum. Or the finite audience who wanted to pay full price to see it had already been in Brooklyn and didn't care to go again at full price.
Updated On: 11/11/23 at 12:46 PM