CREATE TABLE table_6690 ("Average population  ( x 1000 ) " TEXT, "Live births" TEXT, "Deaths" TEXT, "Natural change" TEXT, "Crude birth rate  ( per 1000 ) " FLOAT, "Crude death rate  ( per 1000 ) " FLOAT, "Natural change  ( per 1000 ) " FLOAT)

Natural change (per 1000) smaller than -1, and a Crude birth rate (per 1000) smaller than 10.5, and a Deaths of 102 400 has what highest crude death rate per 1000?
SELECT MAX("Crude death rate (per 1000)") FROM table_6690 WHERE "Natural change (per 1000)" < '-1' AND "Crude birth rate (per 1000)" < '10.5' AND "Deaths" = '102 400'
SELECT MAX("Crude death rate (per 1000)") FROM "table_6690" WHERE "Crude birth rate (per 1000)" < '10.5' AND "Deaths" = '102 400' AND "Natural change (per 1000)" < '-1'