I am doing a practice run on a document in course hero called Module 16 MBC Assignment. On number 1 I get these answers A-800,000...

I am doing a practice run on a document in course hero called Module 16 MBC Assignment. 

On number 1 I get these answers

A-800,000 (340,000/1000000=.34) 272,00/.34

B-200,000 1000000-800000=200000

c-900,000 272,00+34000=306000 306,000/.34=900000

can you verify if I am thinking correctly