Windom Corporation manufactures small airplane propellers. Sales for April totaled $850,000. Information regarding resources for the month follows: In addition, Windom spent $25,000 on 50 engineering changes with a cost driver rate of $500 and $30,000 on eight outside contracts with a cost driver rate of $3,750. Required: a. Prepare a traditional income statement. b. Prepare an activity-based income statement.