$(40\text{'})$ a$.$ Complete the following table CPR assuming

$\backslash$table$[[$Month$,100\%$PSA,$50\%$ PSA,$300\%$ PSA$],[1,,,],[5,,,]]$

b$.$ Complete the following table: SMM assuming

$\backslash$table$[[$Month$,100\%$PSA,$50\%$ PSA,$300\%$ PSA$],[1,,,],[5,,,]]$

c$.$ Complete the following table $($in thousands of dollars$),$ assuming a prepayment rate of $200$PSA:

$\backslash$table$[[\backslash$table$[[$Original balance: $$300,000,000$

$($PLEASE SHOW FORMULAS IN EXCEL AND ANSWER ASAP!$)($within the next two hours if possible$)$