500 usd :- 
High risk=1.00 lot
Mid risk=0.50 lot
Low risk=0.05 lot

1000 usd :-
High risk=2.00 lot
Mid risk=1.00 lot
Low risk=0.10 lot

If you have an amount that is different from the amount above. Take the amount that is closest to the amount above and try to calculate

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#XAUUSD