<pre><code class="lang-python">def inM(x):
 return '{:,.2f} M'.format(x / 1000000)

Series.apply(inM)
</code></pre>

```python
def inM(x):
    return '{:,.2f} M'.format(x / 1000000)

Series.apply(inM)
```

How to convert number to million in pandas series?