From Wiki
"The chart is based solely on sales (both at retail and digitally) in the United States. The sales tracking week begins on Monday and ends on Sunday. A new chart is published the following Thursday with an issue date of the following Saturday.
Example:
Monday 1 January — sales tracking week begins
Sunday 7 January — sales tracking week ends
Thursday 11 January — new chart published, with issue date of Saturday 20 January"
So does this mean the first week would be the pre-orders shipped on 5/30?
Week 1
June 26 - June 1 - pre-orders shipped
June 5 - chart published
June 7 - chart issued
Or do we go by all sales count first week? Are pre-orders included here.
June 2 - Jun 8 - sales
June 12 - chart published
June 14 - chart issued
I've never followed charts so I don't know how this works, but It's really interesting now. Anybody know how this is counted?