Profit Margin, Investment Turnover, and ROI

Briggs Company has operating income of $$25,234,$ invested assets of $$74,000,$ and sales of $$229,400.$ Use the DuPont formula to compute the return on investment. If required, round your answers to two decimal places.

a$.$ Profit margin fill in the blank $1$

$\%$

b$.$ Investment turnover fill in the blank $2$

c$.$ Return on investment fill in the blank $3$

$\%$