Sunland Ltd$.$ estimates sales for the second quarter of $2020$ will be as follows.

$\backslash$table$[[$Month$,$Units$],[$April$,2,500],[$May$,2,440],[$June$,2,340]]$

The target ending inventory of finished products is as follows.

$\backslash$table$[[$March $31,2,000],[$April $30,2,230],[$May $31,2,190],[$June $30,2,310]]$

$2$ units of material are required for each unit of finished product. Production for July is estimated at $2,690$ units to start building inventory for the fall sales period. Sunland's policy is to have an inventory of raw materials at the end of each month equal to $60\%$ of the following month's production requirements.

Raw materials are expected to cost $$5$ per unit throughout the period.

Calculate the May raw materials purchases in dollars.

Raw material purchases cost

$