Suppose that you have ​$9,000 in a rather risky investment recommended by your financial advisor. During the first​ year, your investment decreases by 40​% of its original value. During the second​ year, your investment at the end of year one increases by 50​%. Your advisor tells you that there must have been a 10​% overall increase of your original ​$9,000 investment. Is your financial advisor using percentages​ properly? If​ not, what is your actual percent gain or loss of your original ​$9,000 ​investment?