School calculation assumptions:
Labour cost: £12 per hour; £ 0.2 per minute
Hive (10 Abees) cost: £585 per term
Labour time vacuuming: 15 minutes per room
Labour time to manage 1 Abbee: 0.5 minute per room
1 Abbee can vacuum 1 standard classroom
Classrooms are cleaned every day – days per term: 195/3= ~65