Period Balances

First Period Ending Inventory

The first period ends after adding production and subtracting demand.

highlighted = computed this step

First Period Balance

Ending inventory is beginning inventory plus production minus demand.

first ending=begin+first production−first demand\text{first ending} = \text{begin} + \text{first production} - \text{first demand}
Inventory balance tableThe table recomputes each ending inventory.period inventory balancebeginproddemandendfirst period201009030second period3010011020

First Period Ending Inventory

First-period ending inventory is 30 units.

20+100−90=3020 + 100 - 90 = 30
Inventory balance tableThe table recomputes each ending inventory.period inventory balancebeginproddemandendfirst period201009030second period3010011020