Percentage difference error

Hi all, I think this should be straight forward but just cannot get my head around it. I am using the formula to calculate a change in percentage which seems to work fine except in one instance where the result should be around 500% increase is showing only 84%. The attached example shows this for category A. Hopefully someone can point me in the right direction!

Much appreciated

You should be dividing by column C, not column D to get a percentage.

This would make the percentage increase for the first row 480%, which sounds closer to what you're after.

Thanks guys. Spot on.