CREATE TABLE table_20678 ("Dates  ( MDY ) " TEXT, "Position" FLOAT, "Gross sales" TEXT, "Tickets sold / available" TEXT, "Sellout  ( % ) " TEXT)

What is the sellout % when the gross sales is $1,727,400?
SELECT "Sellout (%)" FROM table_20678 WHERE "Gross sales" = '$1,727,400'
SELECT "Sellout (%)" FROM "table_20678" WHERE "Gross sales" = '$1,727,400'