please help! i have tried and tried and cannot come up with the correct answer.

thanks!

Assume a zero-coupon bond that sells for $978 and will mature in 5 years at $1,650. Use Appendix B for an approximate answer but calculate your final answer using the formula and financial calculator methods. What is the effective yield to maturity? (Assume annual compounding. Do not round Intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Effective yield to maturity Appendix B Present value of $1, PV, Period 1% 2% 0.990 0.980 2 0.980 0.961 3 0.971 0.942 4 0.961 0.924 0.951 0.906 0.942 0.888 0,933 0.871 0.923 0.853 0914 0.837 0.905 0.820 0.896 0.804 0.887 0.788 0.879 0.773 0.870 0.758 0.861 0743 0.853 0.728 0.844 0714 0.836 0.700 0.828 0.820 0.780 0.742 0672 0.608 56 9 7 8 9 10 11 12 13 14 15 16 17 18 19 20 25 30 40 50 989 0 0.673 0610 0.552 0453 0372 PV=FV 3% 0971 0.943 0915 0888 0.863 0.837 0813 0.789 0.766 0.744 0.722 0.701 0681 0.661 0642 0623 0.605 0587 0570 0554 0478 0412 0.307 0228 4% 0.962 0,925 0.889 0.855 0.822 0.790 0.760 0731 0.703 0.676 0.650 0.625 0.601 0577 0.555 0.534 0513 0.494 0.475 0456 0.375 0.308 0.200 0.141 5% 0.952 0.907 0.864 0.823 0.784 0.746 0711 0.677 0.645 0614 0.585 0.557 0.530 0.505 0481 0.458 0436 0416 0.396 0.377 0295 0231 0.142 0087 Percent 6% 0.943 0.890 0840 0.792 0.747 0.705 0.665 0.627 0.592 0.558 0.527 0.497 0.469 0.442 0.417 0.394 0.371 0.350 0.331 0.312 0233 0.174 0.097 0.054 7% 0.935 0.873 0816 0.763 0713 0.666 0.623 0.582 0.544 0.508 0.475 0.444 0.415 0:388 0.362 0339 0317 0.296 0277 0258 0184 0.131 0.067 0034 B% 9% 0.926 0917 0.857 0.842 0.794 0.772 0.735 0.708 0.681 0.650 0630 0.596 0.583 0,547 0.540 0.502 0.500 0.460 0.463 0422 0429 0.388 0.397 0.356 0.368 0.326 0340 0.299 0.315 0275 0.292 0.252 0.270 0231 0.250 0.212 0.194 0.178 0.116 0075 0032 0013 ZEZO 0215 0.146 0.099 0.046 0.021 10% 0.909 0.826 0.751 0.683 0.621 0.564 0.513 0.467 0.424 0.386 0.350 0319 0.290 0263 0.239 0218 0.198 0.100 0.164 0.149 0.092 0057 0.022 0.009 11% 0.901 0812 0.731 0,659 0.593 0.535 0.482 0.434 0391 0.352 0.317 0.296 0.258 0232 0209 0.100 0.170 0.153 0.138 0:124 0074 0044 0.015 9000 12% 0.893 0.797 0.712 0.636 0.567 0.507 0452 0.404 0361 0.322 0.287 0.257 0.229 0.205 0.183 0.163 0.146 0 130 0.116 0.104 0.059 0033 0011 0.003