so, two workers working 40 hours each, that's 80 hours of work. 8 dollars per hour in pay: 8*80=640; so 640 dollars were paid to the workers.
the labor cost is [tex] \frac{640}{2000} *100[/tex]=[tex] \frac{64}{2} /tex]=32
so the labor cost is 32% of the revenue.
