You need to use each of the limiting masses and deduct the DOM and fuel to find the allowable traffic load.
You would normally create a table
MRM MTOM MZFM MLM
limit 63060 62800 51300 54900
- DOM 34930 34930 34930 34930
-fuel 11700 11300 nil 2900
Traffic load 16430 16570 16370 17070
Maximum Traffic load from MZFM = 16370 kg