message: [time table] fix reversed ratio
diff: @@ -110,9 +110,9 @@ function viz(slice, payload) {
  if (c.comparisonType === 'diff') {
  v -= recent;
  } else if (c.comparisonType === 'perc') {
  - v /= recent;
  + v = recent / v;
  } else if (c.comparisonType === 'perc_change') {
  - v = (v / recent) - 1;
  + v = (recent / v) - 1;
  }
  } else if (c.colType === 'contrib') {
  // contribution to column total
  