At the top of your dashboard, click the module access icon > Administration > Finance > Finance Reports > Compare Transactions.
Select the start date and end date of the two financial periods you want to compare.
Click the View Report button.
Click on a finance category to drill down and view individual transaction details.
Below given report shows graphical representation comparing both the financial periods, displayed along with finance categories along the x-axis and income/expense amounts along the y-axis.
For more information, watch this-