Find the interest rates earned on each of the following. Round your answers to the nearest whole number.

You borrow $$700$ and promise to pay back $$728$ at the end of $1$ year.

$\%$

You lend $$700,$ and the borrower promises to pay you $$728$ at the end of $1$ year.

$\%$

You borrow $$67,000$ and promise to pay back $$173,781$ at the end of $10$ years.

$\%$

You borrow $$10,000$ and promise to make payments of $$2,504\mathrm{.}60$ at the end of each year for $5$ years.

$\%$