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Labour cost/revenue (%)
Labour cost as a % of revenue.
Customer service level (%)
Volume of products delivered in the correct volumes and within agreed timescales as a percentage of total volumes ordered by customers.
Adjusted operating margin (%)
Adjusted operating profit as a percentage of revenue.
Return on capital employed (ROCE) (%)
Adjusted operating profit as a percentage of average year-end net assets excluding net debt.
Adjusted operating profit (£m)
Operating profit before adjusting items
Net debt divided by EBITDA