accounting quiz

i need help with an accounting quiz. 

it is only one question and you have 30 minuets to solve it, and it should not take that long

i have provided an example of the question, the actual quiz is going to be exactly like that but different number of course.

i only need the last number (in the example it is 277,000). if you can figuer out how to come up with that number the rest does not matter.