Owners equity is one of the most crucial lines in your financial accounts. The liabilities are the sums owed by the owner to creditors, lenders, investors, and other parties that helped finance the asset’s acquisition. We can calculate the owner’s equity by adding up all of the company’s assets (including real estate, machinery, equipment, stock, cash, reserves, and surplus) and then subtracting all of its obligations (debts, wages, salaries, loans, creditors).