Arbitao is not promising a high return on investment.

You didn't promise this?
Arbitao is a fully-working product, generating profits for the early investors
Then you don't need investors. You have fully working product which can give you 0.75% daily return. For what do you need $48,000,000?
Were talking 24/7, real-time analysis of 671 unique pairs on 10 exchanges to discover every profitable arbitrage opportunity and execute successful trades. Since May 16th, 2018 Arbitao executed more than 2.5 million arbitrage trades!

Have you already raised $15M?
If not, how you are operating on 10 exchanges?
Why do you need ICO if you have fully operating project working on 10 exchanges? Trades are in your dashboard, right?
The rate will not stay constant. At first, when we scale the operation, it will probably increase but as more and more competitors are joining the arbitrage market the price spreads will not be as high as nowadays. It may result over time in a drop of daily interest
What does it mean? If I invest $10000, I won't earn...

...up to $20500+ ?
What now? Can I earn 20500$ or not?

Look at us, we like to build pyramids, but that girl in the front (on the left side) forget how our logo looks like, but that is ok, it still looks like pyramid.
The 0.75% profit is profit approximation of the system we have created and in general it gave out 0.75% profits but of course there are risks involved and hence we are not promising anything big yet.
The platform is working because of initial investors and yes arbitao covers 10 exchanges and yes you can check trading history in the dashboard, however we trade on small amounts. To cover all arbitrage opportunities on 10 exchanges and 671 unique pairs (based on daily trade volume and market depth) we need more money on the exhanges.
What does it mean? If I invest $10000, I won't earn...
Since an investor you must be aware that yes the calculator shows the approximate profits but you may not earn the mentioned profits because the market is volatile and margins are changing every minute.