The plate lists five reels in three rows, 25 paylines, high volatility, Aristocrat as the provider, 2017 as the release year and a minimum bet of one cent. It also records that the game carries a jackpot. Those are structural facts about the machine. They describe how often and how heavily it pays relative to other games, not how it will pay in any given session.
What the plate does not carry is a return to player figure. The shortlist further down this page quotes RTP for five other titles, but Happy Prosperous does not appear there with one. Treat that gap as a gap. A high volatility rating is a description of the payout pattern across a very large number of spins, and it is not a forecast for the next hundred.