How many people vacated to successor Dave E. Satterfield, Jr. (d)?
CREATE TABLE table_24502 (
    "District" text,
    "Vacator" text,
    "Reason for change" text,
    "Successor" text,
    "Date successor seated" text
)
SELECT COUNT("Vacator") FROM table_24502 WHERE "Successor" = 'Dave E. Satterfield, Jr. (D)'
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: How many people vacated to successor Dave E. Satterfield, Jr. (d)? ### Input: CREATE TABLE table_24502 (
    "District" text,
    "Vacator" text,
    "Reason for change" text,
    "Successor" text,
    "Date successor seated" text
) ### Response: SELECT COUNT("Vacator") FROM table_24502 WHERE "Successor" = 'Dave E. Satterfield, Jr. (D)'