How do I solve for each blank space in the table?

The S\&OP team at Kansas Furniture, led by David Angelow, has received estimates of demand requirements as shown in the table. Assuming one-time stockout costs for lost sales of $100 per unit, inventory carrying costs of $20 per unit per month, and zero beginning and ending inventory, evaluate the following plan on an incremental cost basis: Plan B: Vary the workforce to produce the prior month's demand. Demand was 1,300 units in June. The cost of hring additional workers is $30 per unit produced. The cost of layotts is $60 per unit cut back. (Enter all responses as whole numbers.) Note: Both hiring and layoff costs are incurred in the month of the change (i.e. going from production of 1,300 in July to 1000 in August requires a layoff (and related costs) of 300 units in August). The S\&OP team at Kansas Furniture, led by David Angelow, has received estimates of demand requirements as shown in the table. Assuming one-time stockout costs for lost sales of $100 per unit, inventory carrying costs of $20 per unit per month, and zero beginning and ending inventory, evaluate the following plan on an incremental cost basis: Plan B: Vary the workforce to produce the prior month's demand. Demand was 1,300 units in June. The cost of hring additional workers is $30 per unit produced. The cost of layotts is $60 per unit cut back. (Enter all responses as whole numbers.) Note: Both hiring and layoff costs are incurred in the month of the change (i.e. going from production of 1,300 in July to 1000 in August requires a layoff (and related costs) of 300 units in August)