BEx Report,expansion for the key figures %CBD,%CPY etc

Dear friends,

In one of our BEx Report, we have some key figures in the columns as below

1.Can you please tell me the expansion for the key figures %CY,%BD,%PY,%CBD,%CPY?

2.Under every column,why they have mentioned with 'KR'?

Kindly give me some the expansions for the above terms.

Thanks in advance

Mohan