Consider that the economy can be in one of three possible states next year: Boom with a probability of $30\%,$ Neutral with a probability of $60\%,$ or Downturn with a probability of $10\%.$ The SDFs are as follows: M$($B$)=0\mathrm{.}840,$ M$($N$)=0\mathrm{.}889,$ and M$($D$)=1\mathrm{.}086.$ Consider a defaultable bond with a principal payment of $100$ if there is no default and $100$x R in the case of default, where R $=0\mathrm{.}4$ is the recovery ratio. The bond is in default in the Downturn state and avoids default otherwise. Calculate the market price of this bond, the fair price, and the credit spread.