Required and Available Capacity

Hi all,

For Z-Report, i have field for Required Capacity and Available Capacity. Please help me to understand how to calculate the required capacity and available and fetch in Z- reports.

I have tables

KBKO Header record for capacity requirements

KBED Capacity requirements records

KBEZ Add. data for table KBED (for indiv. capacities/splits)

Please provide the logic to get required and available capacity.