ABC Manufacturing is analyzing its cash flow statement for the year ended December 31, 2023. The statement shows that the company generated net income of $500,000. However, during this period, ABC had a decrease in accounts receivable of $50,000 and an increase in inventory of $30,000. Additionally, there was a gain on the sale of equipment amounting to $20,000, and depreciation expense recorded was $60,000. Which of the following adjustments should be made to calculate the cash flow from operating activities using the indirect method?