A pilot's allowance increases from $2,400 to $2,520. What is the percentage increase?

To determine the percentage increase, you'll first need to calculate the difference between the new allowance and the original allowance. In this case, the increase is $2,520 - $2,400, which equals $120.

Next, to find the percentage increase, you take the increase ($120) and divide it by the original amount ($2,400). This division gives you:

[

\frac{120}{2400} = 0.05

]

To convert this decimal into a percentage, you multiply by 100:

[

0.05 \times 100 = 5%

]

Thus, the percentage increase in the pilot's allowance is 5%. This confirms that the answer is correct and properly represents the change in the allowance in terms of percentage.