Bramble, Inc's estimated production for the month is $298000$ units. Each unit requires $2$ kilograms of material. The beginning direct materials are $1\%$ of the current month's expected needs. Ending inventory desired is $7100$ kilograms. How much are estimated direct materials purchases in kilograms?

$299140$ kilograms

$603100$ kilograms

$594860$ kilograms

$597140$ kilograms