Question

If 15 out of 100 oranges are rotten what percentage are rotten

Answer 1

You have two numbers. What do you think you should do with them?
add?
subtract?
multiply?
divide?

Then multiply your answer by 100 to get the percentage.

I'll be glad to check your answer.

Answer 2

"percent" means "per hundred"
so, that would be 15 percent, right?

Answer 3

yeah

Answer 4

Very good