I have an unopened 1977 vinyl record and was wondering if anyone knows it's approximate worth?

I recently found and bought an unopened 1977 Sammy Davis Jr. vinyl record. It's called: "Hey There! It's Sammy Davis Jr. At His Dynamite Greatest". I know Sammy Davis Jr. didn't sell big like some of the other members of the Rat Pack, but still, I only paid $4 for it, and I'm thinking it's at least worth that. Any approximate, but realistic values would be nice. Thanks!