A computer's depreciation is given by the following equation: $V(t)=V_0(0\mathrm{.}84{)}^t,$ where $t$ is in years. What is the monthly depreciation rate?

$7\mathrm{.}00\%$

$8\mathrm{.}22\%$

$5\mathrm{.}67\%$

$1\mathrm{.}44\%$