Ten annual returns are listed in the following table:

a$.$ What is the arithmetic average return over the $10-$year period?

b$.$ What is the geometric average return over the $10-$year period?

c$.$ If you invested $$100\mathrm{.}00$ at the beginning, how much would you have at the end?

a$.$ What is the arithmetic average return over the $10-$year period?

The arithmetic average return over the $10-$year period is $\%.($Round to two decimal places.$)$

Data table

$($Click on the following icon $$ in order to copy its contents into a spreadsheet.$)$

$-19\mathrm{.}7\%,16\mathrm{.}6\%,18\mathrm{.}3\%,-49\mathrm{.}8\%,43\mathrm{.}4\%,1\mathrm{.}9\%,-16\mathrm{.}2\%,46\mathrm{.}3\%$