anchor.diff:            "interval": null,
             "targets": [
               {
  -              "target": "movingAverage(asPercent(divideSeries(sumSeries(stats.cache-?_router<%= @machine_suffix_metrics -%>.nginx_logs.www-origin.http_4xx), sumSeries(stats.cache-?_router<%= @machine_suffix_metrics -%>.nginx_logs.www-origin.http_*xx)),1), '1min')",
  +              "target": "movingAverage(asPercent(divideSeries(diffSeries(sumSeries(stats.cache-?_router<%= @machine_suffix_metrics -%>.nginx_logs.www-origin.http_4xx), sumSeries(stats.cache-?_router<%= @machine_suffix_metrics -%>.nginx_logs.www-origin.http_429)), sumSeries(stats.cache-?_router<%= @machine_suffix_metrics -%>.nginx_logs.www-origin.http_*xx)),1), '1min')",
                 "hide": false
               }
             ],
  
positive.code:           "height": "250"
          },
          {
            "title": "ORIGIN HTTP 4XX",
            "error": false,
            "span": 4,
            "editable": true,
  
negative.code:           "valueFontSize": "200%",
            "postfixFontSize": "80%",
            "thresholds": "0,1,2",
            "colorBackground": false,
            "colorValue": true,
            "colors": [
              "rgba(50, 172, 45, 0.97)",
              "rgba(237, 129, 40, 0.89)",
              "rgba(245, 54, 54, 0.9)"
            ],
            "sparkline": {
              "show": true,
              "full": true,
              "lineColor": "rgb(31, 120, 193)",
              "fillColor": "rgba(31, 118, 189, 0.18)"
            },
            "height": "250"
          },
          {
            "title": "ORIGIN HTTP 429 (TOO MANY REQUESTS)",
            "error": false,
            "span": 4,
            "editable": true,
            "type": "singlestat",
            "id": 12,
            "links": [
              {
                "type": "absolute",
                "name": "Drilldown dashboard",
                "dashboard": "origin_health.json",
                "title": "Origin health",
                "url": "/#/dashboard/file/origin_health.json"
              }
            ],
            "maxDataPoints": 100,
            "interval": null,
            "targets": [
              {
                "target": "movingAverage(asPercent(divideSeries(sumSeries(stats.cache-?_router<%= @machine_suffix_metrics -%>.nginx_logs.www-origin.http_429), sumSeries(stats.cache-?_router<%= @machine_suffix_metrics -%>.nginx_logs.www-origin.http_*xx)),1), '1min')",
                "hide": false
              }
            ],
            "cacheTimeout": null,
            "format": "percent",
            "prefix": "",
            "postfix": "",
            "nullText": null,
            "valueMaps": [
              {
                "value": "null",
                "op": "=",
                "text": "N/A"
              }
            ],
            "nullPointMode": "null as zero",
            "valueName": "current",
            "prefixFontSize": "50%",
            "valueFontSize": "200%",
            "postfixFontSize": "80%",
            "thresholds": "0,3,5",
            "colorBackground": false,
            "colorValue": true,
            "colors": [
  