How much would you pay for a perpetual bond that pays an annual coupon of $$80$ per year and yields on competing instruments are $10\%?$

You would pay $$800.($Round your response to the nearest penny.$)$

If competing yields are expected to change to $10\%,$ what is the current yield on this same bond assuming that you paid $$800?$

The current yield is Blank$\%.($Round your response to the nearest integer.$)$

If you sell this bond in exactly one year, having paid $$800,$ and received exactly one coupon payment, what is your total return if competing yields are $10\%?$

Your total return is Blank $\%.($Round your response to two decimal places.$)$

kindly work on part $2$ and $3$