Equivalent weight to sodium acetate anhyrous

Sodium acetate trihydrate USP material for all the tests they have written to equivalent to anhydrous sodium acetate how we will calculate please explain

The molecular formula of Sodium acetate trihydrate is CH3C00Na.3H20 and the molecular weight is Molecular Weight 136.08
The molecuar formula of Sodium acetate anhydrous is CH3COONa and the molecular weight is 82.03
Therefore weight of Sodium acetate trihydrate equivalent to 1 g of Sodium acetate anhydrous is as follows

(136.08 / 82.03) weight of 1 g of Sodium acetate anhydrous = 1.659 g of Sodium acetate trihydrate

Dear sir i want to weigh equivalent to 200mg of anhydrous sodium acetate from sodium acetate trihydrate please tell me calculation.

Please use this formula as I have explained you in my previous communication,

(136.08 / 82.03) weight of 1 g of Sodium acetate anhydrous = 1.659 g of Sodium acetate trihydrate

Quantity of Sodium acetate trihydrate equivalent to 200 mg of anhydrous Sodium acetate =
200 X 1.659 = 331.8 mg (Sodium acetate trihydrate)