How to compute the margin?

Example, Greece 20,



the rate is 252

2000 contract.

after leverage-

the value is =A$75410

The margin is A$1508



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The margin is A$1508,

so the open is A$1508 X100 = A$150,800?

and the leverage must be 2?



the rate is 252,

so one point = AUD$0.3?