Answer:
15%
Step-by-step explanation:
We can set up an equation to find out what percentage will equal $92.
That would be:
80x = 92
Now, you just solve for x.
[tex]80x = 92\\x = \frac{92}{80} \\x = 1.15[/tex]
Now since the question at what percentage did the headphones go up, the answer would be by 15%
