Help Needed Please!

Question

What's wrong with this code

data = {
"100-90": 25, "42-01": 48, "55-09": 12, "128-64": 71, "002-22": 18, "321-54": 19, "097-32": 33, "065-135": 64, "99-043": 80, "111-99": 11, "123-019": 5, "109-890": 72, "132-123": 27, "32-908": 27, "008-09": 25, "055-967": 35, "897-99": 44, "890-98": 56, "344-32": 65, "43-955": 59, "001-233": 9, "089-111": 15, "090-090": 17, "56-777": 23, "44-909": 27, "13-111": 21, "87-432": 15, "87-433": 14, "87-434": 23, "87-435": 11, "87-436": 12, "87-437": 16, "94-121": 15, "94-122": 35, "80-089": 10, "87-456": 8, "87-430": 40
}
age = int(input())
#your code goes here
adult=20
child=5

def revenue(x):
counter=0

for value in data.values():
if value>18:
counter+=adult
else:
counter+=child
return revenue

firstGrowth=revenue(18)
finalGrowth=revenue(age)

growthAnalysis= int(((finalGrowth - firstGrowth)/firstGrowth)*100)
print(growthAnalysis )

Answer 1

may i ask you something ?

what the use of *x* in revenue function ?

i dont know any of it because im newbie. sorry for asking a question that not match with your question . . .

Answer 2

In your funtion, it should be:
if value > x:

You are now not using x in the function.

Answer 3

Paul
Thank you
I often call it an offside function error, You saved my day

Answer 4

キャサリン
x is an empty variable waiting to be updated whenever we use that function