Blu Ray:
Units sold: 410k
Gross: $11,082,850
Source: http://www.the-numbers.com/weekly-bluray-sales-chart
DVD:
Units sold: 120k
Gross: $1,808,685
Source: http://www.the-numbers.com/weekly-dvd-sales-chart
They seem to be good numbers for the Blu Ray. After 1 week it went straight to the #23rd top selling of the year. Once the chart is up-to-date I imagine it'll be among the top 15/20 sellers of the year.
It will probably be the sales relating to dvd/blu-ray that will determine a sequel... or not...
Is this just for the US?
EDIT: Yes it is, so it made even more internationally.
http://www.the-numbers.com/home-market/packaged-media-sales-chart/2017/08/27
As of the last available US sales chart, combined sales of BR and DVD have made $15,107,944.