1099 B on the same date has one row with 'Check if Basis Reported to IRS' and 'Check if non-covered security'. How to calculate cost basis for non-covered security?

1099 B from Computer Share has one row with 'Check if Basis Reported to IRS' and 'Check if non-covered security'. One row has 'Cost or Other Basis' and other do not. Both rows are on the same date.

When I go to the transactional details, it has many entries and it is difficult to find the cost basis for the missing one. How do I calculate the cost basis? Should I calculate cost basis for all the entries on that date?