Answer:
1.103%
Explanation:
Data provided in the question:
Market​ debt-equity ratio = 0.65
Corporate tax rate = 40%
Interest on paid its debt = 7%
Now,
Debt Ă· Equity = 0.65
or
Debt = 0.65 Ă— Equity
Weight of Debt = Debt Ă· (Debt + Equity)
or
= ( 0.65 Ă— Equity ) Ă· ( 0.65 Ă— Equity + Equity )
= 0.65 Ă· 1.65
= 0.3939
also,
Tax shield = Corporate tax rate Ă— Interest paid on its debt
= 0.40 Ă— 0.07
= 0.028
= 2.8%
Therefore,
The interest tax shield from its debt lowers​ Summit's WACC by
= Weight of Debt  × Tax shield
= 0.3939 Ă— 2.8%
= 1.103%