Decimals

Good morning,

I have this report that had before hand decimals I changed the format to no decimals but it gives me this weird results. see for ex

with decimals:

xyz= -1.00

abc= 0.50

TOTAL -0.50

no decimals

xyz= -1

abc= 1

TOTAL -1

Does someone has a trick in their hat for this particular problem??

Many thanks!!