Define a getter function named totalRevenue that subtracts budget to boxOffice and returns the result. 1 var movie// Code will be tested with a different movie 2 name: "Forrest Gump", director "Robert Zemeckis", composer "Alan Silvestri", 5 cast: 4 6 7 8 9 10 "Tom Hanks" "Forrest Gump", "Michael Connor Humphreys": "Young Forrest Gump", Robin Wright": "Jenny Curran", "Gary Sinise": "Lieutenant Dan Taylor" budget: 5500000e, boxOffice: 677900000, awards: [], 12 13 14 15 16 3