How much is silver star medal worth presented to secret service buy Ronald Reagan when he got shot?

Let's get the facts straight in order to answer your question:

1-The Silver Star is a military medal, earned only in combat. NONE were awarded by Pres Reagan to any Secret Service men.

2-Several Secret Servicemen were honored, but they received the U.S. Congress commendations, the Director's Award of Valor, and later with the Presidential Rank Award for Meritorious Executive. The U.S. Treasury Department, of which the Secret Service is a part, honored him with the Exceptional Service Award, and one agent received the NCAA Award of Valor.

3-What are the values? Of historical value in the scheme of American history - immense. To people who cannot spell, know rules of punctuation and/or grammar, likely very little.