Westerville Company reported the following results from last year$$s operations:

Sales $ $1,400,000$

Variable expenses $720,000$

Contribution margin $680,000$

Fixed expenses $470,000$

Net operating income $ $210,000$

Average operating assets $ $875,000$

At the beginning of this year, the company has a $$350,000$ investment opportunity with the following cost and revenue characteristics:

Sales $ $560,000$

Contribution margin ratio $70\%$ of sales

Fixed expenses $ $336,000$

The company$$s minimum required rate of return is $15\%.$

$4.$ What is the margin related to this year$$s investment opportunity?

$7.$ If the company pursues the investment opportunity and otherwise performs the same as last year, what margin will it earn this year?

$8.$ If the company pursues the investment opportunity and otherwise performs the same as last year, what turnover will it earn this year? $($Round your answer to $2$ decimal places.$)$

$9.$ If the company pursues the investment opportunity and otherwise performs the same as last year, what ROI will it earn this year?

$11.$ What is last year$$s residual income?

$12.$ What is the residual income of this year$$s investment opportunity?

$13.$ If the company pursues the investment opportunity and otherwise performs the same as last year, what residual income will it earn this year?