The presentation discusses working capital, which is the funds used to finance a business's day-to-day operations. It is calculated as current assets minus current liabilities. Working capital is divided into gross working capital, which is the total current assets, and net working capital, which is current assets minus current liabilities. There are two types of working capital: permanent working capital, which is the minimum level of current assets needed to operate at all times; and temporary working capital, which fluctuates depending on business activity and represents additional current asset needs.