Which Total has a Gold smaller than 0?
CREATE TABLE table_52728 (
    "Rank" real,
    "Nation" text,
    "Gold" real,
    "Silver" real,
    "Bronze" real,
    "Total" real
)
SELECT SUM("Total") FROM table_52728 WHERE "Gold" < '0'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Which Total has a Gold smaller than 0? ### Input: CREATE TABLE table_52728 (
    "Rank" real,
    "Nation" text,
    "Gold" real,
    "Silver" real,
    "Bronze" real,
    "Total" real
) ### Response: SELECT SUM("Total") FROM table_52728 WHERE "Gold" < '0'