BE stands for Budget Estimates;
RE stands for Revised Estimates; and
A stands for Actuals.
The short forms BE and RE are not only used for budget purposes but also in other financial, accounting and different projections. And, at any other places where it suits the purpose.
Generally, in lengthy projections in a Excel spreadsheets, where many columns and rows are involved, these short forms are used to save the lengthy space its full forms could take up in cells.
Budget for Financial Year 2019-20
A) 1st Quarter Estimated Turnover Projection (As on 1st April, 2019)
April, 2019 - USD 7000
May, 2019 - USD 6000
June, 2019 - USD 8000
B) 1st Quarter Revised Turnover Projection (As on 15th May, 2019)
April, 2019 - (BE) USD 7000 - (A) 6750
May, 2019 - (BE) USD 6000 - (RE) 6500
June, 2019 - (BE) USD 8000 - (RE) 7500