Oriole manufactures a single product. The following income statement shows two different levels of activity, which are assumed to be within Oriole's relevant range. You may want to use a spreadsheet to perform calculations. Oriole, Inc. Income Statement Volume Activity Levels 1,000 units 1,500 units $ 100,000 $ 150,000 Sales at $100 each Less variable expenses Manufacturing at $43 each 43,000 64,500 Selling at $10 each 10,000 15,000 Administration at $6 each 6,000 9,000 Contribution margin 41,000 61,500