— In manufacturing,
Wharton researchers showed that if weekly turnover goes up by 1 percentage point, defect rates climb by about 0.74–0.79%. More churn → more mistakes → weaker brand.
—
CareerBuilder: average bad-hire cost ~$17,000.
—
Robert Half: typically 15–21% of annual salary.
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SHRM: with hidden costs, the tally can reach $240,000 in some cases.
Consensus: total cost commonly spans
~30% to 250% of annual pay—most painful for executives and scarce specialists.