if completed
  span.small-details(data-i18n='teacher.complete')
    | Complete
else if started
  .fraction-students.small-details
    = levelsCompleted
    | /
    = levelsTotal
    span.spl(data-i18n='teacher.levels')
      | Levels
  .percent-students.small-details
    = Math.floor(levelsCompleted / levelsTotal * 100)
    | %
    span.spl(data-i18n='teacher.complete')
      | Complete
else
  span.small-details(data-i18n='teacher.assigned')
    | Assigned