| Column | Type | Actions |
|---|---|---|
| id | int(10) unsigned | |
| team_id | int(10) unsigned | |
| target_month | date | |
| old_target_amount | decimal(15,2) | |
| new_target_amount | decimal(15,2) | |
| old_achieved_amount | decimal(15,2) | |
| new_achieved_amount | decimal(15,2) | |
| action | enum('set','update','reset','auto_reset') | |
| changed_by | int(10) unsigned | |
| changed_at | timestamp |