Barry$$s Steroids Company has $$1,000$ par value bonds outstanding at $13$ percent interest. The bonds will mature in $40$ years.

If the percent yield to maturity is $10$ percent, what percent of the total bond value does the repayment of principal represent? Assume interest payments are annual. Use Appendix B and Appendix D for an approximate answer but calculate your final answer using the formula and financial calculator methods.

Note: Do not round intermediate calculations. Input your answer as a percent rounded to $2$ decimal places.