Notice: wpdb::prepare was called incorrectly

I'm getting this error ten times on a page where I'm using $wpdb->prepare in ten instances.

What am I doing incorrectly with this function?

Notice: wpdb::prepare was called incorrectly. The query argument of wpdb::prepare() must have a placeholder.

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$results = $wpdb->get_var( $wpdb->prepare("SELECT ItemID, Price FROM $table WHERE ItemID = $quanid GROUP BY Price ORDER BY COUNT(*) DESC LIMIT 1", 1 ));