Best way to show field Level History for form fields

1. Can we track the field history for Formula field?
2. How do I show opportunity field history in Salesforce?
3. Can we report on field history Salesforce?

Can we track the field history for Formula field?

Field History Tracking cannot be set on Formula fields as per Standard functionality. However, this can be worked around by creating a custom field, tracking that one, and make sure it's updating it with a workflow rule to retain the same values as the Formula field.

How do I show opportunity field history in Salesforce?

Click Set History Tracking. Tip When you enable tracking for an object, customize your page layouts to include the object's history related list. For accounts, contacts, leads, and opportunities, select the Enable Account History , Enable Contact History , Enable Lead History , or Enable Opportunity History checkbox.

Can we report on field history Salesforce?

Field history reports let you track changes in fields by adding an “Old Value” and a “New Value” column. With a field history report, each report row represents a change to a record. By filtering a field history report, you can answer questions like “Which opportunities have we closed so far this financial quarter?”