Right now is August $1,2020.$ You would like to construct an aggregate production plan for product PX$27$ for the four quarters of $2021.$

Cost of regular production $=65$ $$/$u$.$

Cost of overtime production $=97$ $$/$u$.$

Inventory holding cost $=5$ $$/$u$/$qtr$.$

Cost of increasing regular production $=80$ $$/$u$.$

Cost of decreasing regular production $=90$ $$/$u$.$

The regular production in Quarter $4$ of $2020$ is $858$ u$.$

The inventory a the beginning of Quarter $1$ of $2021$ is estimated to be $98$ u$.$

The forecasted demand for the four quarters of $2021$ are: $1,156,1,432,1,113,$ and $777$ units.

You want to use the level production strategy with overtime production.

Furthermore, you will keep inventory as low as possible but stockouts $($shortages$)$ must be avoided.

Suppose you keep the quarterly regular production constant at $1,015$ units and add overtime production if necessary.

You must perform the needed calculation and answer the question shown below.

NOTE: Do not use any comma in your answers.

The total cost of the level production strategy is $\_\_\_\_\_\_\_\_\_\_\_\_$ dollars.