$15$

Assume the following information for the Milling Department:

$\backslash$table$[[$Milling Department,Units$],[$Beginning work in process inventory,$390],[$Units started into production during March,$6,000],[$Units completed during the period and transferred to the next department,$5,800],[$Ending work in process inventory,$590]]$

Using the FIFO method, how many units were started and completed during the period?