$\backslash$table$[[,$January,February,March$],[$Sales in un$$ts$,15,300,20,600,18,300],[$Production in units,$18,300,19,300,17,200]]$

One pound of material is required for each finished unit. The inventory of materials at the end of each month should equal $20\%$ of the following month's productio needs. Purchases of raw materials for February would be budgeted to be: