Hi again,
Unfortunately it looks like this might not be feasible to do as a table with the tools available in Kibana, but I think you would be able to achieve it as a line chart in either Time Series Visual Builder or Timelion.
In TSVB, you'll set up the 2 metrics to do the ratio on, and then use a Bucket Script aggregation:
For Timelion, you can refer to this discussion: https://discuss.elastic.co/t/how-to-show-ratio-of-2-fields-which-are-result-of-2-filters-in-a-bar-chart. Basically you'll want to use an expression like:
.es(*, timefield="day", metric=sum:number_of_tokens_matched).divide(.es(*, timefield="day", metric=sum:number_of_tokens))