An employee has the payroll results listed in the table. The payroll results contain each relevant payroll comparison period for the creation of wage type differences (changes). The system compares the most recent payroll period with the same for-period information as the payroll period being processed.

Sequential no.	For-period	In-period	Preceding period
00001	01 1996	01 1996	No preceding period
00002	01 1996	02 1996	00001
00003	02 1996	02 1996	No preceding period
00004	03 1996	03 1996	No preceding period
00005	01 1996	04 1996	00002
00006	02 1996	04 1996	00003
00007	03 1996	04 1996	00004
00008	04 1996	04 1996	No preceding period