A bond has a coupon rate of 8% and matures in 10 years. The bond has a par value of $1,000. The yield to maturity is 8%. If interest rates increase from 8% to 9%, what is the actual percentage change in bond's price resulting from this increase in interest rates?

Express your answer as a percentage, rounded to two decimal places.

Group of answer choices

a.-6.42%

b.+1.00%

c.+6.42%

d.-1.00%