Suppose you get a promotion after 3 years that requires you to move, so you sell your condo. Your condo value increased by 2% per year over that time period. Your realtor requires a 5% commission for selling your propertly. What will be your net profit from the sale?

You are considering buying a condo for $300,000. You will make a down payment of 20% and take out a 20 year mortgage with a 6% APR with monthly compounding. Alternatively you can rent a similar condo for $900 per month. What is the additional monthly cost associated with buying the condo versus renting a condo?