Check the Denominator: When calculating turnover or retention, ensure you are using the correct total number of staff for the specific time period mentioned.
Analyze the 'Why': In exam questions, don't just state that turnover has increased; explain the likely consequences, such as increased recruitment costs and loss of institutional knowledge.
Look for Correlations: If absenteeism is rising alongside labor cost per unit, it often suggests that the business is spending more on temporary or agency staff to cover for absent employees.
Verify Units: Ensure that labor cost per unit is expressed in currency (e.g., USD per unit) while turnover and absenteeism are expressed as percentages.
Ignoring Qualitative Factors: A common mistake is assuming that low labor costs per unit always indicate efficiency; it could actually signal underinvestment in skilled staff, leading to poor quality.
The 'Zero Turnover' Fallacy: Students often think 0% turnover is the ideal goal. In reality, some turnover is healthy as it brings in fresh ideas and allows the business to remove underperforming staff.
Data Lag: Relying solely on HR data can be dangerous because by the time the figures show a spike in accidents or absenteeism, morale may have already reached a breaking point.