title: How to do math inside of a for loop in python?
body: <p>This is my current code and it is only adding my &quot;z&quot; sum once.</p>
  <pre><code>increase_rate = int(input(&quot;Enter the Percent Daily Increase Rate&quot;))
  for i in range(10, 21):
      x = increase_rate/100
      c = 1.5
      y = c * x 
      z = c + y
      print(&quot;On Feb&quot;, i, z, &quot;million were vaccinated&quot;)
  </code></pre>
  <p>Result (with input 40)</p>
  <pre><code>On Feb 10 2.1 million were vaccinated
  On Feb 11 2.1 million were vaccinated
  On Feb 12 2.1 million were vaccinated
  On Feb 13 2.1 million were vaccinated
  On Feb 14 2.1 million were vaccinated
  On Feb 15 2.1 million were vaccinated
  On Feb 16 2.1 million were vaccinated
  On Feb 17 2.1 million were vaccinated
  On Feb 18 2.1 million were vaccinated
  On Feb 19 2.1 million were vaccinated
  On Feb 20 2.1 million were vaccinated
  </code></pre>
  <p>Result needed:</p>
  <pre><code>On Feb 10 1.5 million were vaccinated
  On Feb 11 2.1 million were vaccinated
  On Feb 12 2.94 million were vaccinated
  On Feb 13 4.116 million were vaccinated
  On Feb 14 5.7624 million were vaccinated
  On Feb 15 8.067359999999999 million were vaccinated
  On Feb 16 11.294304 million were vaccinated
  On Feb 17 15.8120256 million were vaccinated
  On Feb 18 22.13683584 million were vaccinated
  On Feb 19 30.991570176 million were vaccinated
  On Feb 20 43.38819824639999 million were vaccinated
  </code></pre>
  <p>How do I get my code to keep going after the 2.1 million while still going in order?</p>