Wally's Wheelbarrows, Inc. has provided the following per unit cost data for the last year when 250,000 wheelbarrows were produced and sold. Raw materials $25.75 Direct labor 18.00 Manufacturing overhead 6.25 Fixed costs were $580,000. The sales price was $80 per wheelbarrow. The company's tax rate is 40%. Required: How many units must be sold to meet an after-tax income of $500,000? What would be the operating income (pre-tax) from selling ?5,000 wheelbarrows? What would be the operating income (pre-tax) from selling ?5,000 wheelbarrows if the xed costs increase by 15%? What would be the operating income (pre-tax) from selling ?5,000 wheelbarrows if instead the selling price increases by 10%?I What increase in selling price would need to occur to cover the 15% increase in xed costs but still earn 500,000 after tax