diff --git a/example-rules.yml b/example-rules.yml
index 5985287d..5ca5c4cb 100644
--- a/example-rules.yml
+++ b/example-rules.yml
@@ -3,12 +3,16 @@ groups:
   rules:
   # The count of CPUs per node, useful for getting CPU time as a percent of total.
   - record: instance:node_cpus:count
-    expr: count(node_cpu{mode="idle"}) without (cpu,mode)
+    expr: count(node_cpu_seconds_total{mode="idle"}) without (cpu,mode)
 
   # CPU in use by CPU.
-  - record: instance_cpu:node_cpu_not_idle:rate5m
-    expr: sum(rate(node_cpu{mode!="idle"}[5m])) without (mode)
+  - record: instance_cpu:node_cpu_seconds_not_idle:rate5m
+    expr: sum(rate(node_cpu_seconds_total{mode!="idle"}[5m])) without (mode)
 
   # CPU in use by mode.
-  - record: instance_mode:node_cpu:rate5m
-    expr: sum(rate(node_cpu[5m])) without (cpu)
+  - record: instance_mode:node_cpu_seconds:rate5m
+    expr: sum(rate(node_cpu_seconds_total[5m])) without (cpu)
+
+  # CPU in use ratio.
+  - record: instance:node_cpu_utilization:ratio
+    expr: sum(instance_mode:node_cpu_seconds:rate5m{mode!="idle"}) without (mode) / instance:node_cpus:count
diff --git a/example.rules b/example.rules
deleted file mode 100644
index a44fecf4..00000000
--- a/example.rules
+++ /dev/null
@@ -1,8 +0,0 @@
-# The count of CPUs per node, useful for getting CPU time as a percent of total.
-instance:node_cpus:count = count(node_cpu{mode="idle"}) without (cpu,mode)
-
-# CPU in use by CPU.
-instance_cpu:node_cpu_not_idle:rate5m = sum(rate(node_cpu{mode!="idle"}[5m])) without (mode)
-
-# CPU in use by mode.
-instance_mode:node_cpu:rate5m = sum(rate(node_cpu[5m])) without (cpu)