Suppose that the shares of a company are being traded at a price of $70$ Euros per share.

The company has declared a dividend of $2$ euros per share. An investor buys the participation shares by paying $55$ euros per share and borrowing the remaining part from the dealer with an annual interest of $20\%.$ What is the investor's return, if after one year the share is sold at a price of $90$ Euros per share?