How can I calculate the physical stock available for sale?

How can I calculate the physical stock available for sale?

Hey Zoho Team, 

I've tried to calculate the physical stock on hand in various ways - but always receive a mismatch between what's displayed in Zoho Inventory & analytics. 
Can you please let me know how the physical stock available for sale is calculated?

Thanks in advance, 
Ben

            Zoho Marketing Automation

                    Zoho Pagesense Resources

                      Zoho SalesIQ Resources



                            Zoho TeamInbox Resources

                              Zoho DataPrep Resources



                                Zoho CRM Plus Resources

                                  Zoho Books Resources


                                    Zoho Subscriptions Resources

                                      Zoho Desk Resources

                                        Zoho Projects Resources


                                          Zoho Sprints Resources


                                            Qntrl Resources


                                              Zoho Creator Resources


                                                Zoho WorkDrive Resources





                                                    Zoho Campaigns Resources

                                                      Zoho CRM Resources

                                                            Design. Discuss. Deliver.

                                                            Create visually engaging stories with Zoho Show.

                                                            Get Started Now