Big Machine Corp had the following activities during the year: Proceeds from the sale of land $300,000 Gain on sale of land $50,000 Proceeds from the issue of common shares $1,000,000 Purchase of equipment $450,000 Repayment of mortgage outstanding on the sold land $200,000 Interest paid $22,500 Dividends paid $10,000 What was Big Machine's cash flow from investing activities for the year?