为什么计算器算出来没有答案？

问题如下：

Grupo Ignacia issued 10-year corporate bonds two years ago. The bonds pay an annualized coupon of 10.7 percent on a semiannual basis, and the current annualized YTM is 11.6 percent. The current price of Grupo Ignacia’s bonds (per MXN100 of par value) is closest to:

选项：

A.

MXN95.47

B.

MXN97.18

C.

MXN95.39

解释：

C is correct. The coupon payments are 5.35 (=10.7/2), the discount rate is 5.8 percent (=11.6%/2) per period, and the number of periods is 16 (=8×2). Using Equation 6, the calculation is as follows:

95.39 = 5.35/1.058 + 5.35/1.058² + 5.35/1.058³ +5.35/1.058⁴ + … + 5.35/1.058¹⁴ + 5.35/1.058 ¹⁵ + 105.35/1.058 ¹⁶ .

A is incorrect. MXN95.47 is the result when incorrectly using coupon payments of 10.7, a discount rate of 11.6 percent, and 8 as the number of periods.

B is incorrect. MXN97.18 is the result when using the correct semiannual coupons and discount rate, but incorrectly using 8 as the number of periods.