It's a common coin with no added value.
The 1975 canadian 1 dollar is made of 100% nickel. Depending on its condition, its scarcity, supply and demand and errors, the value of a 1 dollar 1975 varies from 1$ to 98$
Its face value is 5 cents, but the melt value of a 1955-1981 Canadian nickel is $0.09 so the melt value is 4 cents more than the face value of the coin5 cents. It's not rare, and many are still in circulation.
In circulated condition, face value only.