Consider the following spot interest rates for maturities of one, two, three, and four years.

$r_1=4\mathrm{.}78,r_2=5\mathrm{.}28,r_3=5\mathrm{.}9\%,r_4=6\mathrm{.}7\%$

What are the following forward rates, where $f_{1,k}$ refers to a forward rate for the period beginning in one year and extending for $k$ years?

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

$\backslash$table$[[f_{1,1},\%$