Aconcert ticket that originally cost $46.50 is on sale for $38.75. what is the percent of decrease, rounded to nearest tenth?

To start with let's find the difference in price

46.5-38.75 = 7.75

now we can make a proportion

7.75       x
=
46.5       100

then cross multiply and divide

100 times 7.75 = 775 divided by 46.5 16.7

the percent of decrease is 16.7

The answer would be d i think but i’m for sure it is not a and c