title: Problem with trying to use the equation for total payoff amount for my python lab
body: <p>I need help with question 3 found in the link below 
  <a href="http://courses.cse.tamu.edu/davidkebo/csce-110/labs/lab_2.pdf" rel="nofollow noreferrer">http://courses.cse.tamu.edu/davidkebo/csce-110/labs/lab_2.pdf</a></p>
  
  <pre><code>p = 15000
  r = float(input("Enter interest rate (in percentage): "))
  n = float(input("Enter loan period (in years): "))
  c = p(1+r/100)**n
  print()
  print(f" At {r}% interest, you need to pay ${c} after {n} years")
  </code></pre>
  
  <p>I don't know why it's telling me that i have an uncallable 'int' or how i'd get the payoff to be rounded to 2 decimal points </p>