Choosing a masternode is a demanding task. Since they are responsible for signing blocks and guaranteeing the decentralization of the network, investing in a masternode actually means investing in the future of the coin.
Accordingly, this should be done solely with faith, and not a three-digit number in place of the ROI indicator.
By the way, knowledge about the features of the cryptocurrency will also not be superfluous, so read the information and the project roadmap in detail before investing.