Free practice · numeric · medium

Practice

Calculate fully valid revenue percentage

Of four revenue_raw values—250, -40, N/A, and 125—two are numeric and nonnegative. What percentage is fully valid under that rule?

Five-row order profile

A short profile exposes three different quality risks

Rows
5
Source extract
Distinct order IDs
4
One repeated key
Approved statuses
3
One blank · one unexpected
Rows with a missing status20%
20%

The duplicate key, blank status, and unapproved label must be investigated before shipped revenue is reported.