ENGR.ECONOMY CUSTOM FOR TAMU ISEN 667
ENGR.ECONOMY CUSTOM FOR TAMU ISEN 667
8th Edition
ISBN: 9781307584394
Author: Blank
Publisher: MCG/CREATE
Question
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Chapter 10, Problem 25P

(a):

To determine

Calculate cost of debt capital before tax.

(a):

Expert Solution
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Explanation of Solution

Interest expense (IP) is $1,200,000 per year. Initial received payment (RP) is $19,000,000. Face value of the bond (B) is $20,000,000. Time period (n) is 15. Effective tax rate (ET) is 29%. Cost of capital (i) before tax can be calculated as follows:

RP=IP((1+i)n1i(1+i)n)+B(1+i)n19,000,000=1,200,000((1+i)151i(1+i)15)+20,000,000(1+i)15

Substitute i as 6% by trial and error method in the above calculation.

19,000,000=1,200,000((1+0.06)1510.06(1+0.06)15)+20,000,000(1+0.06)1519,000,000=1,200,000(2.39655810.06(2.396558))+20,000,0002.39655819,000,000=1,200,000(1.3965580.143793)+8,345,301.8919,000,000=1,200,000(9.712281)+8,345,301.8919,000,000=11,654,737.2+8,345,301.8919,000,000=20,000,039.09

Since the calculated value is greater than the initial received payment, increase the cost of capital from 6% to 6.53%.

19,000,000=1,200,000((1+0.0653)1510.0653(1+0.0653)15)+20,000,000(1+0.0653)1519,000,000=1,200,000(2.58272910.0653(2.582729))+20,000,0002.58272919,000,000=1,200,000(9.384585)+7,743,747.0219,000,000=11,261,502+7,743,747.0219,000,00019,005,249.02

The calculated value is equal to the initial received payment. Thus, it is confirmed that the cost of debt capital is 6.53%.

(b):

To determine

Calculate cost of debt capital after tax.

(b):

Expert Solution
Check Mark

Explanation of Solution

Effective tax rate (ET) is 29%. Cost of capital (i) before tax can be calculated as follows:

RP=(IP(IP×ET))((1+i)n1i(1+i)n)+B(1+i)n19,000,000=(1,200,000(1,200,000×0.29))((1+i)151i(1+i)15)+20,000,000(1+i)1519,000,000=(1,200,000348,000)((1+i)151i(1+i)15)+20,000,000(1+i)1519,000,000=852,000((1+i)151i(1+i)15)+20,000,000(1+i)15

Substitute i as 5% by trial and error method in the above calculation.

19,000,000=852,000((1+0.05)1510.05(1+0.05)15)+20,000,000(1+0.05)1519,000,000=852,000(2.07892810.05(2.078928))+20,000,0002.07892819,000,000=852,000(1.0789280.103946)+9,620,342.7919,000,000=852,000(10.379697)+9,620,342.7919,000,000=8,843,502.696+9,620,342.7919,000,000>18,463,845.49

Since the calculated value is less than the initial received payment, decrease the cost of capital from 5% to 4.73%.

19,000,000=852,000((1+0.0473)1510.0473(1+0.0473)15)+20,000,000(1+0.0473)1519,000,000=852,000(2.00016810.0473(2.000168))+20,000,0002.00016819,000,000=852,000(1.0001680.094608)+9,999,160.0719,000,000=852,000(10.571706)+9,999,160.0719,000,000=9,007,093.51+9,999,160.0719,000,00019,006,253.58

The calculated value is equal to the initial received payment. Thus, it is confirmed that the cost of debt capital is 4.73%.

(c):

To determine

Spreadsheet function.

(c):

Expert Solution
Check Mark

Explanation of Solution

Spreadsheet function for cost of debt capital before tax is given below.

= RATE(15,-1200000,19000000,-20000000)

Spreadsheet function for cost of debt capital after tax is given below.

= RATE(15,-1200000*(1-0.29),19000000,-20000000)

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