If the yuan is worth 6.58 to a US$, what would the price to a US$ be if the yuan changed to 6.25

the correct question is

The local currency it gives is a total of 275 Yuan. If the yuan is worth 6.58 to a US$, what would the price to a US$ be if the yuan changed to 6.25
The options are A)$2.21 B)$2.50 C)$13.31 D)$41.79 E)$44.00

we know that 

at the current exchange rate give (6.58)
if 1 usd-----------------> 6.58 yuan
X usd------------------> 275 yuan
X=275/6.58------------> X=41.79 usd

at the current exchange rate give (6.25)
if 1 usd-----------------> 6.25 yuan
X usd------------------> 275 yuan
X=275/6.25------------> X=44 usd

so

the change in price in US$ would be [44-41.79]=US$2.21

the answer is the option 
A)$2.21