mysql - how use the mathematical statement in FROM in the sql query -


i want sum of 1 column derived 2 column multiplication below mentioning query please let me know solution 

(select sum(multiplication) weight ( s.qtyonhand *  round((sysdate - inv.movementdate), 2 ))),    s.qtyonhand *  round((sysdate - inv.movementdate), 2) multiplication

above query giving error missing right parenthesis please me out


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