Head-First Company plans to sell 5,800 bicycle helmets at $76 each in the coming year. Unit variable cost is $44 (includes direct materials, direct labor, variable factory overhead, and variable selling expense). Total fixed cost equals $49,600 (includes fixed factory overhead and fixed selling and administrative expense). Required: 1. Calculate the number of helmets Head-First must sell to earn operating income of $89,600. 2. Check your answer by preparing a contribution margin income statement based on the number of units calculated. X Contribution Margin Income Statement Shaded cells have feedback. 2. Check your answer by preparing a contribution margin income statement,