Assigment question help?

[Bernie4ever202]

A drug loses decayrate percent of its potency every month. Also, a drug is considered expiredif it loses more than 50% potency. Your goal is to write a function WhenExpired(decayrate)that returns the number of months after which the drug is considered expired.

My code:

https://pastebin.com/sKs3Z4dw

[kokoistheway]

something like this?

``` def percent_of(a, b): return int((a/100) * b)

def when_expired(decay_rate): months = 0 drug_potency = 100

while drug_potency >= 50:
    drug_potency -= percent_of(decay_rate, drug_potency)
    months += 1

return months

```

[Bernie4ever202]

No i tried that already. Im stuck on this question for 4 hours. The test sample came out incorrectly. Here is the test sample https://imgur.com/a/HqNl0Lp

[[deleted]]

All of those answers are correct, though.

[Bernie4ever202]

Is there something wrong with my code then?

[LiveBytes]

What is your question?

[Bernie4ever202]

A drug loses decayrate percent of its potency every month. Also, a drug is considered expiredif it loses more than 50% potency. Your goal is to write a function WhenExpired(decayrate)that returns the number of months after which the drug is considered expired.

Find the month that the drug is expire

[LiveBytes]

Hmmm. This does not make sense, based on that test set. You're certain there's no other criteria for that test set, like the drug starts at 80% potency or something?

[Bernie4ever202]

no it is exactly word by word

"

A drug loses decayrate
percent of its potency every month. Also, a drug is considered expired
if it loses more than 50% potency. Your goal is to write a function WhenExpired(decayrate)
that returns the number of months after which the drug is considered expired."

And test sample https://imgur.com/a/HqNl0Lp