The cost trend chart will show you a view of:
This the actual money your Azure resources have cost you from the beginning of the year to the present date.
The forecast shows your costs in the next three months.
Forecast with savings
This is what your forecast will look like if you follow the recommendations outlined for you in Savings.
The table will summarize the information you need to know for your subscriptions. You will be able to view the Resource Administrator, cost, variation, and potential savings for each.
Click the subscription for further details.