fix(xy): non-stacked as percentage (#1495) [38.0.x]#1504

markov00 merged 1 commit intoelastic:38.0.xelastic/elastic-charts:38.0.xfrom

markov00:2021_11_24-fix_non-stack_percentagemarkov00/elastic-charts:2021_11_24-fix_non-stack_percentageCopy head branch name to clipboard