Dearborn Supplies has total sales of

$192 million, assets of

$105 million, a return on equity of

33 percent, and a net profit margin of

7.6 percent. What is thefirm's debtratio?

I know the formula, in this case

29%=7.8% x 192/99 x 1/1- debt ratio

I think I am having issues with order of operations, I keep getting the wrong answer....please help