Problem in RTC Report

I am developing a report in RTC.

Its working fine for positive and zero values but as it get a zero values it skips that record.

i have already checked the code.Blankzeroandneg() function, it is not there so what else be the reason its leaving negative values.

Please reply . Thanks in advance

There is no way to know what is wrong based only on your description. Start by stepping through the debugger and finding the code that is causing it to be skipped. Also, be aware that it might not be code at all and could be a property on a data item.