Your Income is $25000 with 0 allowances.

Your Tax Break amount is $5000.

Your Income is $50000 with 2 allowances.

Your Tax Break amount is $10000.

Because you earn more than 80,000 dollars, your maximum amount that you can receive in allowances has been limited to $5,000, which means that the number of allowances you inputted may output as only 1.

Your Income is $100000 with 1 allowances.

Your Tax Break amount is $5000.