Columns not changing size based on value

[Pricey79]

Hello, I was hoping someone could help me please

How do I get the columns in this stacked column chart to change size depending on values? For example, september should be higher than august and december based on value?

Thank you for any help 

[HotChilli · Accepted solution]

Can you show a larger picture which includes the scale on the y-axis please?  Or post a link to the pbix and i'll have a look.

[Pricey79]

@HotChilli  thanks for your reply. Just saying Y axis made me realise what was going on . Thank you!