Star Inc. has Year 1 revenues of $80 million, net income of $9 million, assets of $65 million, and equity of $40 million, as well as Year 2 revenues of $87 million, net income of $22 million, assets of $70 million, and equity of $50 million. Calculate Stars return on equity (ROE) for each year based on the DuPont method and compare it with a direct ROE measure. Next, explain why the firms ROE changed between Year 1 and Year 2.