By Discover Talent — Operations Management Series When managers and team leads open Excel, they are not searching for rows of data — they are looking for answers. This is where business KPIs become critical. They translate raw operational numbers into clear signals for decision-making. Using a supply chain example, reliability is measured through on-time delivery percentage. The formula is simple: on-time deliveries divided by total deliveries. In January, 420 out of 500 deliveries were completed on time, resulting in 84% reliability. By April, performance improved to 530 on-time deliveries out of 560 — nearly 95%. This upward trend confirms that corrective actions are effective. Managers also focus on KPI trends. Month-over-month movement is more important than a single bad result. A rising trend indicates stability, while a falling trend signals risk. To visualize this clearly, Excel line charts are used. Selecting months and delivery percentages, inserting a...
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