title: Calculate current page base on offset and total
body: <pre><code>total: 30
  limit: 10
  offset: 0
  current_page: 1
  
  total: 30
  limit: 10
  offset: 10
  current_page: 2
  
  total: 30
  limit: 10
  offset: 20
  current_page: 3
  </code></pre>
  
  <p>What is the formula to get current_page given I have total, limit (item count per page) and offset? Hope I don't misunderstood offset here.</p>