According to Clause 7b of DH contract (which you signed with your maid),
" A daily food and travelling allowance of HK$100 per day shall be paid to the Helper from the date of her departure from her place of origin until the date of her arrival at HK if the travelling is by the most direct route. The same payment shall be made when the Helper returns to her place of origin upon expiry or termination of this contract."
Compensation:
1) One month notice or one month salary in lieu of notice
2) One one-way air ticket [HK-->Indonesia]
3) Travel and Food allowance [$100/day]
4) Annual leave wages
5) last month salary
About the airticket:
general speaking, you should pay TWO one-way airtickets for one 2-yr contract. [Indo-->HK $ HK-->Indo]. In your case, the domestic helper has finished TWO 2-yr contracts. You should pay one more Round Ticket Compensate to her AND one one-way ticket for her back to Indonesia.