Sheridan Corporation's manufacturing costs for August when production was $700$ units appears below:

$\backslash$table$[[$Direct material,$$7$ per unit$],[$Direct labour,$3400],[$Variable overhead,$1800],[$Factory depreciation,$7000],[$Factory supervisory salaries,$1400],[$Other fixed factory costs,$]]$

How much is the budgeted manufacturing cost for a month when $600$ units are produced?

$$15900$

$$12700$

$$9100$

$$22200$