Amazon uses lower fees on FBA listings when the price is under $10 or CAD 11, which replaced the Small & Light program. This new fee structure is the Low-Price FBA fees.
Aura uses the Low-Priced FBA Fees in two ways:
How do I know if Aura is using the Low-Priced FBA Fees?
Hover over the Fees on a listing and, if Low-Price FBA Fees are being used, Aura will show "Low price". This can be seen on a specific listings page or on the Listings page.