Answer: 4%
Explanation:
You need to know what percent of 100 dollars is 4 dollars.
You know that the amount of 100 dollars is the 100%. So, if 100 dollars is the 100%, then the percentage that represents 4 dollars can be calculated as following:
Remember that:
![(a)/(a)=1](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7ekiy686497yd7puaozgsavvve7mz0b12p.png)
Then, you get that the result is:
![percentage=((4)(100))/((100))\\\\percentage=4\%](https://img.qammunity.org/2020/formulas/mathematics/middle-school/voxkfa3j13amp5k79y3qqufwzciouragi9.png)
Therefore, 4 dollars is 4% of 100 dollars.