Question

75 upon 80 convert in percentage

Answer 1

75/80*100
91.46 %is there

Answer 2

ANSWER WITH FULL EXPLANATION

If $\frac{x}{y}$ is given, then the formula for converting it into percentage is $\frac{x}{y}=(\frac{x}{y}*100)$%
In other words, in order to convert a given fraction into percentage, multiply the given fraction by 100, and put "%" sign after it. 

Here, the fraction is given $\frac{75}{80}$. So, by converting into percentage, we get
$\frac{75}{80}*100 = 93.75$%

Hope this may help you. 

If you have any doubt, then you can ask me in the comments.