The WordPress dashboard includes an AffiliateWP Referral Summary widget. The widget is only visible to the administrator, or any user given the manage_affiliate_options capability.
Included are quick stats for earnings and referrals (current month/today/last month/totals), as well as recent referrals:

If you’d like to remove the widget:
- Click the Screen Options tab at the top of the WordPress dashboard
- Deselect the AffiliateWP Referral Summary checkbox.