If we look at the matter superficially, then the answer would be that the ECA made ??a quick profit.
But if you delve into the issue, we will see that many factors affect the rate of earnings.
To be successful an ECA, ECA should have a competitive price and products.
And successful ECA need a great campaign
On the other hand, the PSA making residual income.
So when summarize, earnings need to do all of the programs.
