Ochoa Company builds internal conveyor equipment to client specifications. On October $1,$ Job $877$ was in process with a cost of $$18,650$ to date.

During October, Jobs $878,879,$ and $880$ were started. Data on costs added during October for all jobs are as follows:

$\backslash$table$[[,$Job $877,$Job $878,$Job $879,$Job $880],[$Direct materials,$$14,440,$$$5,930,$$$3,490,$$$1,770$