I need help with this question

Gilde Industries is a division of a major corporation. Last year the division had total sales of $23,380,000, net operating income of $2,828,980, and average operating assets of $7,000,000. The company's minimum required rate of return is 12%.

Required:

Can you help me What is the division's margin?

Can you help me What is the division's turnover?

Can you help me What is the division's return on investment (ROI)

One true or false question i dont understand.

The following journal entry would be made to apply overhead costs to jobs in a job order costing system"

Manufacturing overhead XXX

Work in progress XXX

Is it true or false?