Check Period Period Unit Sales 760 800 200 400 480 620 680 540 Cost of Sales $590 560 230 400 390 550 590 I 430 Unit Sales 580 320 240 720 Cost of Sales $390 240 230 550 260 410 260 280 440 380 Hint: Use the above information about unit sales and total cost of sales to prepare a scatter diagram offline. Draw a cost line (offline) that reflects the behavior displayed by this cost. Determine whether the cost is variable, step-wise, fixed, mixed, or curvilinear Multiple Choice Mutrole Choice Step-wise 20