The Event Configuration - Price Charts|History|Details page provides specific information that applies to the changes made to the selected price chart. These changes are sorted into the updates, additions and removes sections. Within these sections, the changes are further sorted by the type of change that occured: pricing, charges or assignment.
The updates section displays the values before the change on the left side of each column and the new values on the right side of each column.
The following image illustrates the Price Charts|History|Details page: