Right now is August $1,2020.$ You would like to construct an aggregate production plan for product P$1$X$27$ for the next 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 $2020=892$ u The inventory at the beginning of Quarter $1$ of $2021$ is estimated to be $83$ u The forecasted demand for the four quarters of $2021$ are: $1,163,1,343,1,017,$ and $828$ units. You want to use the chase production strategy without overtime production and keep inventory as low as possible. Stockouts $($shortages$)$ are not allowed. You must perform the calculation and answer the questions shown below. The total cost of decreasing regular production is $\_\_\_\_\_\_\_\_\_\_\_\_\_$ dollars.