$1.$ Bank B quotes an interest rate of $4\mathrm{.}68\%$ per quarter, compounded monthly.

It is equivalent to an interest rate of $\_\_\_\_\%$ per annum, compounded annually.

$2.$ The interest rate is $8\%$ p$.$a$.$ compounded annually.

A project requires an investment of $$1000$ today. It pays $$200$ in $35$ days, $$250$ in $64$ days, $$600$ in $100$ days, and $$400$ in $300$ days.

The NPV of this project is $ $\_\_\_\_\_\_\_\_.$