Hi, there is no cheating here. The Vote Values are shown in USD, not SBD. Also this is bidding based bot, all bidders compete for a pool of fund - Total Vote Value (shown in USD). Please check on ROI on the page prior bidding. And take a look of my posting on how bidding bots work: https://steemit.com/vote/@skydragon/how-a-bidding-bot-works
Also you can compare with other voting bots at https://steembottracker.com/ . They show similar calculation.