Easy Question Re: Bond Discounting

Im embarrased and Im clearly having a brain malfunction, but regarding the following:

What is the present value of a $500,000 30 year bond with a 3.1% coupon and a 10% discounting rate?

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Im reading something and they’re indicating that the answer is somewhere around $175,000.

Never mind. My calculator was screwed up.

N = 30 I/Y = 10 PMT = .031 * 100,000 = 15,500 FV = 100,000 Compute FV = -174,777.45 ~ 175,000 174,777.45 / 1,000,000 = 17.5%