Please explain the below calculation of Pretax cost of Debentures ?
WACC as per book value weights
Book value of Equity & Retained Earnings = Rs.15 crores+ Rs.20 crores =Rs.35 crores
Book Value of preference Shares = Rs. 1 crores
Book Value of Debentures =Rs. 10 crores
Book value of Term loan = Rs.12.5 crores
Cost of Equity = Next year Dividend/Share price + growth rate =3.6/40+0.07 = 0.1600 or 16.00%
Cost of Preference Shares = Dividend/ market price of Preference Share = Rs.100*12%/Rs.75 = 0.1600 or 16.00%
Pretax cost of Debentures(r) is given by (assuming annual coupon)
11.5/r*(1-1/(1+r)^6)+100/(1+r)^6 =80
Solving r =0.1708 or 17.08%
annual coupon=11.5
maturity=6 years
the nominal price of Debentures=100
discount rate (cost of Debentures)=r
Sold price=80
Formula:
"annual\\ coupon\/(1+r)+ annual\\ coupon\/(1+r)^2...annual\\ coupon\/(1+r)^6+the\\ nominal\\ price\/(1+r)^6= sold\\ price"
"annual\\ coupon*(\\frac{1}{1+r}+...+\\frac{1}{(1+r)^6})+the\\ nominal\\ price\/(1+r)^6= sold\\ price"
sum of geometric progression: "\\frac{\\frac{1}{1+r}*(1-\\frac{1}{1+r}^6)}{1-\\frac{1}{1+r}}=\\frac{\\frac{1}{1+r}*(1-\\frac{1}{1+r}^6)}{\\frac{1+r-1}{1+r}}=\\frac{1-\\frac{1}{1+r}^6}{r}"
"\\frac{11.5*(1-\\frac{1}{1+r}^6)}{r}+\\frac{100}{\\frac{1}{1+r}^6}=80"
r=0.1708 or 17.08%
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