Crystal Reports Suppress Group If Field Does Not Change - crystal-reports

Question

I want to suppress a group if a field does not change within that group. Here is a screenshot of my example data (the two red-boxed fields showing the groups that have the unchanging field):
As you can see the two groups, reservation_number 10002 and 10014, should be suppressed as their amount field does not change.
Ideally the above screenshot should become this:
Please note that there can be more than two amount rows in a group.

Answer 1

Follow below process
Create a formula #Initialize and write below code and place in group header
Shared numbervar counter;
counter:=0
Create one more formula count and write below code and place in detail where you have data rows
Shared numbervar counter;
if PreviousIsNull(amount)
then counter:=counter+0
else if previous(amount) = amount
then counter:=counter+0
else if next(amount) = amount
then counter:=counter+0
else counter:=counter+1
Create one more formula result and place in groupfooter
Shared numbervar counter;
Shared Numbervar counter1:=0;
counter1:=counter;
counter
Go to section expert and supress and write below condition:
EvaluateAfter({result}) ;
Shared numbervar counter;
if counter = 0
then
true
else false
Use below formula for supress of header:
EvaluateAfter({result});
Shared Numbervar counter1;
if counter1 = 0
then
true
else false
Let me know if this works else will suggest other way