$3.$ Suppose that TRM Consulting Services has discussed its need for capital with its investment bankers. The bankers have estimated that TRM can raise new funds in the capital markets under the following conditions:

Source Range After$-$Tax Cost

Retained Earnings Up to $150,00010\mathrm{.}50\%$

Common Equity Up to $1,000,00010\mathrm{.}93\%$

$1,000,001$ to $3,000,00011\mathrm{.}26\%$

More than $3,000,00011\mathrm{.}85\%$

Preferred Equity Up to $200,0004\mathrm{.}86\%$

More than $200,0006\mathrm{.}25\%$

Debt Up to $1,000,0004\mathrm{.}33\%$

$1,000,001$ to $2,000,0004\mathrm{.}86\%$

More than $2,000,0005\mathrm{.}12\%$

Using the information from the previous problem, calculate each of the break$-$points, including the break$-$point due to retained earnings.

Create a chart of TRM$$s marginal WACC curve using the market$-$ value weights. Make sure that it is a perfect step function.