On November 1, 2023, an entity sold 50 machines to a customer for $100 each. The cost of each machine is $20. The entity allows customers to return any unused machine within 6 months and receive a full refund. The entity uses the expected value method to estimate the variable consideration. Based on the entitys experience and other relevant factors, it reasonably estimates that 10 machines (6 in 2023 and 4 in 2024) will be returned. What amount of revenue is recognized by the entity from the sale of these machines on November 1, 2023?

Group of answer choices

$4,400

$5,000

$0

$4,000