If a stadium's revenue is $554,000 and its costs are $126,000, what is the stadium's profit as a percentage of its revenue? (Round to the nearest percent.)

The profit would be the difference between the revenue and the cost

profit = 554,000 - 126,000 = $428,000

now to find the percentage of profit from revenue. divide the amount of profit, by the total revenue:

428, 000 / 554,000 = 0.772 = 77%