Secondhand Rose, an antique dealer, bought the full contents of an estate sale for $25,000 on September 1, 2020. The purchase was paid for in cash, but Rose needed to pay a mover $575 to transport the items from Chatham, NJ to her warehouse in Flanders. Because some of the items from the sale were fragile, Rose purchased bubble wrap and other packing supplies at Staples for $200 on credit and purchased insurance on the transportation for $75. Rose also hired 3 students from County College to help her unpack and clean her purchases, for a total cost of $300.

Determine the cost of the inventory Rose purchased at the estate sale.