55000/380=145.7
From my observations, the updating rate clearly give a non negligible help. I've seen stories with an inferior weekly collection rank having their weekly collection increasing by three or four fold just by releasing a few more chapters per week.
And in the end, the only stat i care about is the valid reader retention rate, especially the new reader's one. I noticed that the more chapter i release, the more people comes back on my story in the following days. The stats could be bad for all i know, but at least they're improving, which is i guess still better than the opposite.