n Question 9 3 pts Blockchain Inc. uses machine hours as the allocation base for monthly manufacturing overhead cost. the total estimated overhead for June is $610,000. The predetermined overhead rate is $20/machine hour for June. Its actual machine hours for June is 20,000 hours. Its actual total manufacturing overhead for June was $410,000. Which of the following statement is true for June? Overhead was over-applied by $20,000 O overhead was under-applied by$10,000 O overhead was under-applied by $20,000 O overhead was over-applied by $10,000