WMT’s bonds currently sell for $1,190. They pay a $192 semi-annual coupon payment, have a 31-year maturity, and a face value of $1,000, but they can be called in 16.25 years at $1,840. Their...

WMT’s bonds currently sell for $1,190. They pay a $192 semi-annual coupon payment, have a 31-year maturity, and a face value of $1,000, but they can be called in 16.25 years at $1,840. Their yield-to-call (YTC) is closest to