No one is claiming for ROI to be constant or static. ROI can indeed increase or decrease as per the market conditions. That’s why we are saying for calculations “if everything remains static, under those conditions the ROI will be as displayed”.
Is this your website or mining site
https://www.maas.ge/ I extract it from your email address since there is no link in your thread it will be 3 months and yet the website is still under construction, I advise that you don't push your project anymore, cloud mining is a thing of the past, they are marked as a Ponzi scheme before your cloud mining there are hundreds of cloud mining site that appears that only end up scamming their clients because there's really no mining going on