I don't understand why this formula does not work

Cell D 10 is =IF(B10=1,$G$72,(IF(AND(D11=0,D9=$G$72),$G$71,0)) )
Cell D 11 is =IF(B11=1,$G$72,(IF(AND(D12=0,D10=$G$72),$G$71,0) ))
Cell D 12 is =IF(B12=1,$G$72,(IF(AND(D13=0,D11=$G$72),$G$71,0) ))

If I check off display zero values in my options menu then I do see a zero
in the cell but the formula does not read it as a zero. The only way I know
it doesn't is when I type in a zero in cell D 12 then cell D 11 reacts the
way I expect it to.... Is there something I don't understand about formula
writing or is this one of those so called glitches?

This is what it looks like when the formula is working on its own
Total Kms for the Day 76


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This is what it looks like when I type in a zero in cell D 12
Total Kms for the Day 76
Total Kms to date 76
0