Suppose that you have $14,000 in a rather risky investment recommended by your financial advisor. During the first year, your investment decreases by 70% of its original value. During the second year, your investment at the end of year one increases by 80%. Your advisor tells you that there must have been a 10% overall increase of your original $14,000 investment. Is your financial advisor using percentages properly? If not, what is your actual percent gain or loss of your original $14,000 investment?​