In pinnery you can define planned and real expenses for each card. To to that, open the card.
At Expense, plannes and Expense you can input their values.
As soon as there are expenses defined for a card you will see it on the card, too. The planned expenses are shown after a calculator icon and the real expenses are shown after a bill icon.
If you have defined planned and real costs in cards within a column you can see a comparsion of the in the columns menu. Just open the column menu to see it:
Here you will see a bar chart where real and planned costs are compared. When you hover the mouse over a bar you will see the textual equivalation then. If you are working with multiple currencies you will find a chart per each currency.