In order to view the summary of your transactions on iOS and iPadOS, simply tap on the ‘Pie chart’ icon that is located in the bottom right corner of the transactions list.
On watchOS, simply tap on the ‘Settings’ button that is located in the top right corner of the transactions list and then select the ‘Summary’ option from the menu.
On macOS, please just click on the ‘Pie chart’ icon in the toolbar that is located in the top right corner of the app’s window.