Suppоse а cоllege student оbtаined а $8,000 student loan in 2020. She paid off the loan with $8,500 (including interest) in 2021 (that is, one year later). The consumer price index in 2020 was 300 and was 327 in 2021. As a result, the real interest rate on the loan is [value]%. Just a enter value. Do not include the "%" Round your final answer two decimal points. For example, 123.45 or 20.20. For values less than zero, use a minus sign "-".