title: Why is grafana displaying 0 on the top of the graph
body: <p>It's hard to describe what's going on so i'll show the graph</p>
  <p><a href="https://i.stack.imgur.com/ZUSap.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZUSap.png" alt="enter image description here" /></a></p>
  <p>Weirdly, when I only select Busy IOWait it's all fine. The issue is only when other series are visible</p>
  <p>Queries used</p>
  <pre><code>floor(avg(rate(node_cpu_seconds_total{job=&quot;node-exporter&quot;,mode=&quot;idle&quot;}[5m])) * 100)
  floor(avg(rate(node_cpu_seconds_total{job=&quot;node-exporter&quot;,mode=&quot;iowait&quot;}[5m])) * 100)
  floor(avg(rate(node_cpu_seconds_total{job=&quot;node-exporter&quot;,mode=&quot;user&quot;}[5m])) * 100)
  floor(avg(rate(node_cpu_seconds_total{job=&quot;node-exporter&quot;,mode=&quot;system&quot;}[5m])) * 100)
  </code></pre>