Aggregate demand for a product family is given in the table below for the upcoming four quarters. The production strategy is chase demand, in which the production in the quarter is exactly the demand:

The cost of increasing production from one quarter to the next is accounted for at $$40/$unit of increase

the cost of decreasing production from one quarter to the next is accounted for at $$14/$unit of decrease.

The per unit cost of production is $$40/$unit$.$

Quarter

Demand

Production

Production Increase

Production Decrease

Prior

$450$

Q$1$

$440$

$440$

$450-440=10$

Q$2$

$960$

$960$

$960-440=520$

Q$3$

$120$

$120$

$120-960=-840$

Q$4$

$780$

$780$

$780-120=660$

What is the total of the quarterly increases in production for the year?

What is the total of the quarterly decreases in production? for the year?

What is the total cost for the year? $($do not include the costs for the of the preceding year$).$