Hillary considers herself a shrewd commodities investor. She bought a May cotton contract (50,000 pounds) at

$ 0.7813

a pound, and later sold it at

$ 0.8756

a pound. What were her profit and her return on invested capital if her initial margin was

$ 1 comma 510

and the size of a cotton futures contract is 50,000 pounds of cotton?

Hillary's profit is

$nothing

.

(Round to the nearest dollar.)

If she had an initial margin of

$ 1 comma 510

,

the return on invested capital is

nothing

%.

(Round to two decimal places.)