Maintenance fees are calculated based on the share values. For example, if the per share cost in a strata title development is $50 and you own five shares, your monthly maintenance fee is $250.
Here are the share value allocations
Groupings Share Value
1 - 50 sq m 5
51 - 100 sq m 6
101 - 150 sq m 7
151 - 200 sq m 8
After subsequent 50 sq m share value is 1.
The Medallion starts from 3,574 sq ft which is equal to 332.03 sq m which has a share value of 11.
For The Medallion, the maintenance fee averages from around $550 onwards.
As for the sinking fund, you should check with the Management Corporation Strata Title (MCST).
Hope this answers your question.