Measure maps

Moses Moonrocks Inc. has developed a balanced scorecard with a measure map that suggests that the number of erroneous shipments has a direct effect on operating profit. The company estimates that every shipment error leads to a reduction of revenue by $6,480 and increased costs of about $4,320.

Sales	$230,000
Cost of goods sold	146,000
Depreciation expense	20,000
Other expenses	10,000

If the company has the above budgeted sales and costs for next month (without accounting for any possible shipping errors), determine how many shipping errors the company can afford to have and still break even.

Break-even shipping errors is _______