CREATE TABLE table_76770 ("Name" TEXT, "Gain" FLOAT, "Loss" FLOAT, "Long" FLOAT, "Avg/G" FLOAT)

Which Avg/G has a Gain of 1,839?
SELECT SUM("Avg/G") FROM table_76770 WHERE "Gain" = '1,839'
SELECT SUM("Avg/G") FROM "table_76770" WHERE "Gain" = '1,839'