For $2021,$ Peter Manufacturing uses machine$-$hours as the only overhead cost$-$allocation base. The estimated manufacturing overhead costs are $$300,000,$ and estimated machine hours are $50,000.$ The actual manufacturing overhead costs are $$420,000$ and actual machine hours are $60,000.$

Using job costing, the $2021$ budgeted manufacturing overhead rate is $\_\_\_\_\_\_\_\_.($Round the final answer to the nearest cent.$)$

Question $10$ options:

A$)$

$$5\mathrm{.}00$ per machine$-$hour

B$)$

$$6\mathrm{.}00$ per machine$-$hour

C$)$

$$7\mathrm{.}00$ per machine$-$hour

D$)$

$$8\mathrm{.}40$ per machine$-$hour