You bought a warehouse building for $$1M$ cash on the first day of the year. You will get net rent of $$10,000$ per month in advance for $3$ years, then the net rent will increase to $$12,000$ per month for an additional $6$ years. At the end of the $9$ year holding period you will sell the building to the tenant for $$1\mathrm{.}2M$ cash. What is your yield on this investment? $(10pts)$