Eber Wares is a division of a major corporation. The following data are for the latest year of operations:

Sales $30,000,000

Net operating income $1,170,000

Average operating assets $8,000,000

The company's minimum required rate of return 18%

. i. What is the division's margin?

ii. What is the division's turnover?

iii. What is the division's return on investment (ROI)?

iv. What is the division's residual income?

The step process is where I am struggling