The Punch Analysis tool will present employee's actual punch time compared to their scheduled time and show you the difference in the employees total worked time and the difference of lunch duration. It can be found in Reports - Punch Analysis.
You can use the filter option at the to set a date range, specify employees, and configure options.
The lower section shows Total Count - the number of employees, Average Duration - the average number of hours, Total Durations - the sum of the hours for all employees for each of the specified sections.