On October 15, 2016, Koala, Inc. issued a 10 year bond (with a typical $1000 face value) that had an annual coupon value of $60. [We are assuming that the 2020 coupon has just been redeemed.]

Initially, the bond was sold for the premium price of $1,025.

On October 15, 2020, this bond was selling for only $975.

The market rate of interest for a riskless corporate bond, of this maturity, was 4.5% on October 15, 2016, which reflects market expectations about future rates of inflation.

The market rate of interest for a riskless corporate bond, of this maturity, was 4.0% on October 15, 2020, which reflects market expectations about future rates of inflation.

Question- What was the yield to maturity for this bond on October 15, 2016? [To 3 decimal places.]