Yield to maturity and return

[monsterstat1]

If we agree yield is similar to return which is paramount to investors, then think

-current yield as return due to income from assets

-capital gain yield as return due to the difference in selling and buying price

How can you show that %return=y?


[attachment=0:1ks93tu9]YTM3.JPG[/attachment:1ks93tu9]
i'm confused on how to do this without a direct calculation...any help/ideas?


thanks in advance