"Contracts for Dhong and the other Nepalese men set their base salaries for 12-hour shifts at about $178 per month."

(No matter how you do the math, with no more than two days off a week, that's less than a dollar an hour (edit: I mistakenly wrote day first))

"Another letter explained that the men were getting paid for the rest of January, plus a month. It was a total of about $600 each."

(Almost twice the salary listed above (obviously still peanuts))

edit/addition: "He earns $3 a day for a 12-hour shift inspecting the glue seams on shoes before they’re shipped. It’s about half of the minimum pay he’d been promised in Malaysia. He earns less than $90 per month ..."

Consistent with first statement of salary. Only the 2 months approximately equal to 600 dollars is off.