Sudden drop in sales in last 3 to 4 days

I am experiencing a sudden drop in my sales in last 3 to 4 days. My average orders were 15 to 25 units a day and now I get 3 to 5 units. In the morning, there were atleast 3 to 4 orders and now I get my first order in the afternoon. My prices are low, no changes in reviews, inventory level is good and available in Prime.

Supplement Category

Any insights will be helpful and how I can get back my sales to normal.

Thanks.