George Inc applies manufacturing overhead on the basis of machine hours. Overhead is estimated to be $$1,000,000$ and machine hours are estimated to be $25,000.$

Actual machine hours for the year amounted to $24,000$ hours and actual overhead amounted to $$900,000.$

$1.$ What is George$$s predetermined overhead rate?

$2.$ What amount was applied to manufacturing overhead?

$3.$ At the end of year, was manufacturing overhead over$-$ or under$-$applied?

$4.$ Refer to the previous question. By what amount was manufacturing overhead over$-$ or under$-$applied, if any?