A product has the following financials. What is annual operating cashflow? Assume straight$-$line depreciation over the life of the product.

$\backslash$table$[[$Unit sales,$4,000],[$Price$,17\mathrm{.}50],[$Fixed costs,$20,000],[$Variable costs,$9\mathrm{.}00$ a unit$],[$Fixed assets,$30,000],[$Salvage value,$5,500],[$Product life,$5$ years$]]$