need help with homework

Question

The Au Natural Clothing Factory has changed its year end from a calendar year-end to March 31, with permission from the IRS. The income for its short period from January 1 to March 31 is $24,000.

Calculate the tax for this short period.
A. $7,200
B. $5,223
C. $2,060
D. None of the choices
E. $1,980
F. $16,810

 

Can you please help me with this?

Answer 1

21,000 x 12/3 = 84,000
15% x 50,000 = 7,500
25% x 25,000 = 6,250
34% x 9,000 = 3,060
Total: 16,810
16,810 x 3/12 = 4,302

 

answer is f