Real estate sale in Greece

In 4 weeks of work, we managed to attract 597 clients to the website at a cost of €0.27 each.
Of which 10 clients submitted an inquiry.

And 1 client purchased a land plot (the buyer was a local who was interested in the plot and bought it after 2 months).

The client's income amounts to €250,000 from the sale of the plot.
Total advertising costs, promotional materials (ads, presentations), website, specialists - €2400