Fixed costs: $251,000
Unit selling price: $22
Unit variable costs: $21
Decrease in variable costs: $5
Break-even = fixed costs/contribution margin
Contribution margin = selling price - unit variable cost
Break-even = $251,000/($22-$21)
Break-even = $251,000
New break-even = fixed costs/[(selling price)-(variable cost-decrease in variable cost)]
New break-even = $251,000/[($22) -($21-$5)]
New break-even = $251,000/$22-$16)
New break-even = $251,000/$6
New break-even = $43,833 units