At the bottom is the solution. But what I need to know is how/why the numbers go from 50,000 to 25,000 to 25,000 to 5,000

1Sa. The tax liability of a corporation with ordinary income of $105,000 is Range of taxable income Marginal rate S0 to $50,000 50,000 to 75,000 75,000 to 100,000 100,000 to 335,000 335,000 to 10,000,000 10,000,000 to 15,000,000 15% 39 35 15,000,000 to 18,333,333 Over 18,333,333 38 35 A) $42,000 B) S35,700 C) $23,950 D) S24,200 (0.15 50000+0.25*25000+0.34 25000+.39 5000)