Hi, can someone please help me understand this math problem?
Personal salary is 47%, Helpers salary 25%, Gas 2%, Advertising 2%, Insurance 3%, Investments 4%, Taxes 4%, Miscellaneous 5%, Parts Supplies, 8%
Thank you very much for your time :)

10. What percent of the contractor's income is spent on salaries?

A. 76%
B. 25%
C. 47%
D. 72%