I need to add cell P24 on worksheets M01 to M50, if cell I12 on worksheets
M01 to M50 = "B" if it is blank or contains another letter I need it to
ignore the amt in cell P24. Sheets M01-M50 are in the same workbook and are
part of a much larger workbook. I have tried everything I can think of and
nothing has worked yet. I know that there must be a way to do this. Thank
you for help.