An oil embargo has raised the price of fossil fuels, decreasing aggregate supply and causing real GDP to decrease from $10,000 to $9,000. What is the percent change in real GDP? If the change is a decrease in GDP, make sure to express your answer as a negative number. If necessary, round your answer to the nearest tenth.

Which account has the highest effective annual interest rate? not necessary but show how you got your answer.a. account 1: interest is compounded quarterly at an annual rate of 4.20%.b. account 2: interest is compounded monthly at an annual rate of 4.15%.c. account 3: interest is compounded semiannually at an annual rate of 4.10%d. account 4: interest is compounded annually at a rate of 4.25%.