Kibana ~ min_doc_count : 0 issue with calculating percentage

[vdalvi (Vai)]

Hi,

I have a kibana query that calculates percentage change over a period of 15 minutes. The query works just fine except when the doc_count : 0.

When I get a doc_count : 0 for that interval it does not calculate percentage change and in the next interval I get "null" I understand the math behind it but is it possible to still calculate percentage change when doc_count : 0 ??

Please refer to the 12:00 PM and 12:00 PM interval for reference below...
Query Result :

"buckets" : [
        {
          "key" : "c91f8152d1e3dea4bd2c7ace418c10fbb981893c",
          "doc_count" : 138029,
          "every15min" : {
            "buckets" : [
              {
                "key_as_string" : "2020-06-20T11:30:00.000-06:00",
                "key" : 1592674200000,
                "doc_count" : 38752
              },
              {
                "key_as_string" : "2020-06-20T11:45:00.000-06:00",
                "key" : 1592675100000,
                "doc_count" : 41174,
                "significantChange" : {
                  "value" : 2422.0
                },
                "significantChangePerc" : {
                  "value" : 6.25
                }
              },
              {
                "key_as_string" : "2020-06-20T12:00:00.000-06:00",
                "key" : 1592676000000,
                "doc_count" : 0,
                "significantChange" : {
                  "value" : -41174.0
                }
              },
              {
                "key_as_string" : "2020-06-20T12:15:00.000-06:00",
                "key" : 1592676900000,
                "doc_count" : 38737,
                "significantChange" : {
                  "value" : 38737.0
                },
                "significantChangePerc" : {
                  "value" : null
                }
              },
              {
                "key_as_string" : "2020-06-20T12:30:00.000-06:00",
                "key" : 1592677800000,
                "doc_count" : 19366,
                "significantChange" : {
                  "value" : -19371.0
                },
                "significantChangePerc" : {
                  "value" : -50.006453778041674
                }
              }
            ]
          }
        }

As seen I dont see percentage change calculated when doc_count: 0 I would like to see for example -100% there. Is it possible ?