Last year, a firm operated with the following financial ratios: profit margin was 0.25, total asset turnover was 0.75, and equity multiplier was 1.20.

This year, the firm's financial ratios have the following values: profit margin is 0.10, total asset turnover is 0.74, and equity multiplier is 3.04.

Using the DuPont identity, the firm's return on equity last year was?

Using the DuPont identity, the firm's return on equity this year is?

Using the DuPont identity, what significant changes did the company experience between last year and this year?