I need the 'Excel' formulas. The PRICE one in particular. I can't get it to match up.

After recently receiving a bonus, you have decided to add some bonds to your investment portfolio. You have narrowed your choice down to the following bonds (assume semiannual payments): Using the PRICE function, calculate the intrinsic value of each bond. Is either bond currently undervalued (use the if statement to show either undervalued or (overvalued)? Using the YIELD function, calculate the yield to maturity of each bond using the current market prices. Show your formulas in the excel sheet